Just wanted to let you know that years down the road you are still helping people. My class uses 'active learning' which means you read the book and teach each other in class, no lectures. It's going as well as you would expect. Without your videos I would be screwed right now, thank you!
@nikopatrikios568
7 жыл бұрын
You might be my life saver for AP Physics this year
@stepbystepscience
7 жыл бұрын
Hope it goes well in AP physics...You can see a listing of all my videos at my website, www.stepbystepscience.com
@rileybrown5039
5 жыл бұрын
Everyone who did problems like this made it wayyyy more complicated. After searching forever this is the first video that makes sense and made me understand why you do this. Thank you!
@stepbystepscience
5 жыл бұрын
Thank you very much for the nice comment.
@pccasdengroup8379
8 жыл бұрын
this was well explained and it was very helpful because i have a test today on similar problems
@fletcherriches1385
8 жыл бұрын
Thanks for the video!! It helped me understand how to do these problems. Super helpful!
@stepbystepscience
8 жыл бұрын
You are very welcome and thanks for commenting. You can see a listing of all my videos at www.stepbystepscience.com
@tiasantos4724
9 жыл бұрын
Thank you so much. This video was short and sweet and to the point and it helped me understand a lot. Definitely thumbs up.
@stepbystepscience
9 жыл бұрын
great, thanks for commenting.
@MelvilPon
Жыл бұрын
Awesome video 🇵🇬🇵🇬all the way from Papua New Guinea
@stepbystepscience
Жыл бұрын
Thank you so much and greetings from Berlin, Germany!
@miki4117
3 жыл бұрын
This talk is in principle wrong and confused although the result is correct! Forces are vectors
@stepbystepscience
3 жыл бұрын
It is not wrong, there is just more than one way to solve the problems.
@warpingz5533
7 жыл бұрын
You're a big help. Our midterms is coming. I've watched this and it helps me to understand more about this Newton's law
@stepbystepscience
7 жыл бұрын
Hope the mid term goes well...You can also see a listing of all my videos at my website,www.stepbystepscience.com
@samechen9312
2 жыл бұрын
Thank you. You really help me to deal with this kind of the problem.
@stepbystepscience
2 жыл бұрын
You are so welcome!
@nickitheboss9516
7 жыл бұрын
He devotes himself to teaching GREAT TEACHER Thank you
@imrickiee4651
4 жыл бұрын
my pro always uses that some of the equations to add them up and use the Substitute method in the end . then get the acceleration. very complicated and can't understand!!! your ways are very easy!!!! and I understand at all!!!! thanks!!!!!!!!!
@stepbystepscience
4 жыл бұрын
Great that you found the video to be helpful.
@euclasew
7 жыл бұрын
thank you so much, I'm studying this now for IB HL and my physics teacher is terrible and I can't understand a word she says. Thank you so much for posting this, I now understand it
@stepbystepscience
7 жыл бұрын
Thanks for the comment hope all goes well, You can see a listing of all my videos at my website, www.stepbystepscience.com
@spacepopeXIV
4 жыл бұрын
You sound like if Vince Vaughn was a physicist, and I like that very much.
@stepbystepscience
4 жыл бұрын
I have not had the Vince Vaughn comment for a while, thanks and I am glad that you like it.
@ZK-nb3cq
9 жыл бұрын
Great simple, to the point explanation!
@stepbystepscience
9 жыл бұрын
+Zunair khan Thanks for the comment, yes I try to get right to the point. You can a listing of all my videos from my website, www.stepbystepscience.com
@vihanamarasinghe1102
6 жыл бұрын
THANK YOU SO MUCH
@onyxclarke
5 жыл бұрын
Thank you so much! Big help in understanding this type of problem.
@stepbystepscience
5 жыл бұрын
Great and thanks for the comment.
@chrischanty569
4 жыл бұрын
Absolutely fantastic explanation!
@stepbystepscience
4 жыл бұрын
Glad you think so!
@maya.b5704
4 жыл бұрын
Thank You so Much 😊, you really helped me understand this lesson .
@alondrachavez8380
9 жыл бұрын
i love you you saved my life thank you very much sincerely, Amellalli and Alondra
@stepbystepscience
9 жыл бұрын
+Alondra Chavez You are very welcome. You can see a listing of all my videos at my website,www.stepbystepscience.com
@latakumari6083
3 жыл бұрын
Thanks 🙂🙂🙂u cleared my doubt very well and reduced the weight of my mind. 😃
@stepbystepscience
3 жыл бұрын
Glad to hear that. Thanks for the comment.
@bayleyspencer8617
7 жыл бұрын
loving these videos, only reason i've passed maths and engineering at uni was youtube
@stepbystepscience
7 жыл бұрын
Great and thanks for letting me know.
@shaikhaaldhaheri3820
7 ай бұрын
For the net force do i still just pick one of the masses and multiply it by the acceleration we found or do i need to add both masses and multiply it to acceleration?
@stepbystepscience
7 ай бұрын
For the net force you just need add up all of the forces.
@gabrieljacobs6115
7 жыл бұрын
im watching this in 2017. this helped so much.
@nazb4023
5 жыл бұрын
Amazing , thank you!!! Love your videos
@stepbystepscience
5 жыл бұрын
Thank you so much for watching and commenting.
@avneetkaur1518
Жыл бұрын
Great teacher!
@stepbystepscience
Жыл бұрын
Glad you think so, thanks!
@ShivamPatel-hl9ys
6 жыл бұрын
thank you so much you helped with my half Atwood project for my online ap physics i am so lost on how to do it
@stepbystepscience
6 жыл бұрын
No problem, glad that you found the video helpful.
@kookiemingyu175
3 жыл бұрын
Hello for the using Newton’s 2nd Law of motion to the 2nd mass whew in Ft = m2g - m2a inputing the values we get Ft=(4kg)(-9.8) - (4kg)(3.56m/s^2) why do I get an answer -53.44 instead of 24.9N? Please answer ASAP!! Thank you.
@somenerdyblonde
4 жыл бұрын
How do you know which way the acceleration is supposed to go? Why would a lighter block pull a heavier block of a table? I have a problem like this where a car is raising a dangling weight, so the acceleration should be the opposite, and I'm very confused.
@stepbystepscience
4 жыл бұрын
The lighter block pulls het heavier block because it is hanging off the edge of the table. As far as the car goes I would have to see the problem but everything is probably just opposite.
@MopTopRock
9 жыл бұрын
Thanks ! Using the systems approach is much easier
@stepbystepscience
9 жыл бұрын
MopTopRock Great, glad that you found the video helpful. Thanks for commenting.
@santiagopenaloza8924
3 жыл бұрын
Thank you soooo much i have a test tomorrow at 7am
@stepbystepscience
3 жыл бұрын
You're welcome. Best of luck on the test!
@mariaalexandrafontanilla2676
5 жыл бұрын
Thank you for saving my life again
@stepbystepscience
5 жыл бұрын
You are very welcome! Thanks for the comment.
@laurybabii
4 жыл бұрын
This has helped me so much. Thank you
@stepbystepscience
4 жыл бұрын
You're very welcome and thanks for commenting.
@notyourneighbor3416
7 жыл бұрын
Why is my teacher complicating things ugh
@stepbystepscience
7 жыл бұрын
I try to keep it simple and go over everything step-by-step. You can a listing of all my videos from my website at www.stepbystepscience.com
@angelafidler5796
7 жыл бұрын
OMG thank you so much!!! Helped me out so much!✌🏼👌🏼
@MohamedMohamed-su7zm
7 жыл бұрын
i would could give you more than one thumbs up i really like your videos thank you so much
@stepbystepscience
7 жыл бұрын
That is very nice of you to say, thanks. You can see a listing of all my videos at www.stepbystepscience.com
@ianpaulguanzon375
6 жыл бұрын
Thanks for your videos. Well appreciated! :)
@stepbystepscience
6 жыл бұрын
You are very welcome, thanks for commenting.
@BanterlordHades
4 жыл бұрын
How would this problem change if the string was connect to a pulley on m1 and looped around it and was held in place by a wall?
@millions2nette
7 жыл бұрын
Please clear up the m2a part. I understand m2g is the mass of m2 times gravity, but what is the m2a. Very close to the end of the vid, its, Ft=m2g-m2a. What is the m2a. I was thinking, it cant be the m2 mass, because isnt that covered by m2g? Please answer. Gotta test soon. Thanks
@stepbystepscience
7 жыл бұрын
I think the short answer might be that m2a is the mass of m2 times the acceleration....the acceleration we found at the end of the previous slide a = 3.56 m/s2). At this point you are trying to find the force of tension in the string (FT). So you apply Newton's second law to mass number 2.....F = ma. The are two forces, the weight and the tension force. Then there is the ma part. The mass is given and the acceleration is found at the end of the previos slide. Now you can solve for FT. Does that help? Hope the test goes well!
@rileynobles7146
6 жыл бұрын
Awesome job!! Very understandable.
@bluerain4866
4 жыл бұрын
How would you be able to use the acceleration of system to find the change in velocity using f= m(vf-vi/s) because when I do it I get the wrong velocity?
@1105comfortablynumb
8 жыл бұрын
Extremely helpful. Thanks.
@stepbystepscience
8 жыл бұрын
Great, thanks for letting me know. You can see a listing of all my videos at www.stepbystepscience.com
@nadianoormohamed4432
8 жыл бұрын
WHY IS THE FORCE OF TENSION OF M1 POSITIVE ISN'T IT OPPOSITE TO THE MOTION?
@stepbystepscience
8 жыл бұрын
+Nadia Noormohamed Because we designated to the right and as positive and the tension vector points to the right. The tension force is what is causing the object to move to the right. It is pulling the object to the right. The friction force for m1 is opposite of the motion, to the left. You can see a listing of all my videos at my website,www.stepbystepscience.com
@brawlpaz6120
2 жыл бұрын
ty this helps a lot
@stepbystepscience
2 жыл бұрын
glad to hear that, thanks for watching!
@debdattabhattacharya6254
7 жыл бұрын
How are you adding forces which are in different axes ? the mg and Ft on m2 are in the y axis while the other Ft on m1 is in the x axis.
@stepbystepscience
7 жыл бұрын
Really the end result is that the force is on the same axis, the pulley just changes the direction of the force. You can see a listing of all my videos at my website, www.stepbystepscience.com
@pressed4888
4 жыл бұрын
how do you find the net force provided by the hanging mass?
@agusspermata4600
2 жыл бұрын
I am a retiree....i still want to understand the law .. F = ma Really interesting topic....please create more videos on this topic....TQ..
@stepbystepscience
2 жыл бұрын
Thanks for the suggestion. Check out all 26 of my videos on this topic.
@porkyp1845
6 жыл бұрын
Is N=mg true at any speed? But what if its hanging mass is speeding up as it falls?
@jhay_mstv6331
3 жыл бұрын
what about if it gives a coefficient friction of m1?
@aaryadeshpande1621
3 жыл бұрын
5:13: I have a question. What if we considered the downward to be negative? Then how would it work? Because then in that case for the equation to still hold true, wouldn't then Ft have to cancel out with m2g (and so they would need to be equal)? How would it work out? Thank you!!
@stepbystepscience
3 жыл бұрын
It basically works out the same, the acceleration would just be negative but the magnitude (number ) would be the same.
@Saucemeurshordy
7 жыл бұрын
thanks alot really helped me
@Hbrand03
4 жыл бұрын
what if my sum of forces equation has friction and I don't know the value of it?
@stepbystepscience
4 жыл бұрын
You can calculated it, if you know the normal force and the coefficient of friction.
@Hbrand03
4 жыл бұрын
@@stepbystepscience thank you!
@ibrahimkhan492
8 жыл бұрын
can you please explain tension and acceleration when bodies are accelerating and non accelerating.
@stepbystepscience
8 жыл бұрын
That might take awhile. You can see a listing of all my videos at www.stepbystepscience.com
@DUMPL1NGZ
3 жыл бұрын
Thank you so much
@stepbystepscience
3 жыл бұрын
You're most welcome
@laurasofia1483
9 жыл бұрын
Thank you!! It helped a lot! :)
@stepbystepscience
9 жыл бұрын
Laura Sofia you are very welcome, glad it helped and thanks for commenting.
@arminmollahajlou5904
3 жыл бұрын
simply perfect 👌 👌
@stepbystepscience
3 жыл бұрын
Thanks
@shelbychapa
6 жыл бұрын
THANK YOU! This is awesome!
@danielbailey3291
8 ай бұрын
But what if m2 mass was not given but you were given time it took to fall and the height of m2
@stepbystepscience
8 ай бұрын
Sounds like you could calculate the acceleration first and then get m2.
@stepbystepscience
10 жыл бұрын
Munchar Cassell, Good question, but in this case, as I stated at the beginning of the video, there is no friction between M1 and the table. It the link below I go over the case where there is friction between M1 and the table. kzitem.info/news/bejne/tHiI36Crkpyiq44
@justblaze4707
7 жыл бұрын
Thank you very much!
@andreslopez-reyes3852
6 жыл бұрын
THANK YOU YOU'RE THE BEST
@stepbystepscience
6 жыл бұрын
Very nice of you to say, thanks.
@kathyacardona9964
9 жыл бұрын
Thanks for the video!
@stepbystepscience
9 жыл бұрын
Kathya Cardona You are very welcome, thanks for commenting.
@rajnishkumar4249
3 жыл бұрын
Thank you and i got it ...
@stepbystepscience
3 жыл бұрын
Awesome!
@aaravkansal4174
5 жыл бұрын
How would I find coefficient of friction if I was given acceleration
@mehakimran4045
2 жыл бұрын
KINGGGGGG SLAYYYYY
@abednegovidolo7665
3 жыл бұрын
very thankful
@stepbystepscience
3 жыл бұрын
You are most welcome
@eliscassell4991
10 жыл бұрын
they should be friction for M1 to the left!? am i right
@mujahidsyed2917
8 жыл бұрын
generally yes, but this problem we are neglecting friction
@Hearty-Chan
2 жыл бұрын
What if there are three masses on the table and m1= m2 = m3
@stepbystepscience
2 жыл бұрын
Then typo do the same thing for each mass.
@farahjamal3257
5 жыл бұрын
what if the string is suddenly broken? what will be the acceleration of mass 1?
@stepbystepscience
5 жыл бұрын
is it already moving, is there friction. if not friction and already moving then it would remain constant. does that help?
@farahjamal3257
5 жыл бұрын
@@stepbystepscience yeah i got it.. thank you very much
@healing-hero9792
4 жыл бұрын
Thanks!
@stepbystepscience
4 жыл бұрын
You are very welcome!
@monicaarnaout
8 жыл бұрын
i still dont understand how you made M2g positive and Ftension in the y direction negative?
@stepbystepscience
8 жыл бұрын
I decided the way that the object will move is the positive direction. M2 moves down so that is positive, the tension force points in the opposite direction (up) so that is negative. You can see a listing of all my videos at my website, www.stepbystepscience.com
@monicaarnaout
8 жыл бұрын
okay thank you! so would it have worked if you decided down was negative?
@stepbystepscience
8 жыл бұрын
+acinom yes as long as you are consistent through out the problem.
@monicaarnaout
8 жыл бұрын
awesome, thanks for responding!
@danielsammy6286
Жыл бұрын
Great 👍
@stepbystepscience
Жыл бұрын
Thanks!
@liamo890
6 жыл бұрын
Thanks homie!
@RahulKrRY
4 жыл бұрын
Very Nice...
@stepbystepscience
4 жыл бұрын
Thank you! Cheers!
@ercfs
7 жыл бұрын
Mantap jua
@marlon123444
9 жыл бұрын
thank you so much...
@stepbystepscience
9 жыл бұрын
you are very welcome.
@ناصرالبدراني-ش9س
5 жыл бұрын
these messy problems need to be explained by an elegant mind such as yours, otherwise it gets more complicated.
@stepbystepscience
5 жыл бұрын
Step by Step explanation.... thanks for watching and commenting. Very nice of you to say.
@DylanGames1000
3 жыл бұрын
Or you could simply just multiply the product of m1 and m2 and divide that product by the sum of those two forces. Multiply all that by 9.8 m/s^2
@spokes_the_comedian
5 жыл бұрын
It just became very easy, my teacher was giving me funny methods of doing it
@stepbystepscience
5 жыл бұрын
Great, step by step.
@yamackocovali8075
3 жыл бұрын
Why dont u calculate the FN?
@stepbystepscience
3 жыл бұрын
I assume mean the FN as the normal force. If I did not calculate the normal force it is because you do not need it to calculate the acceleration. It does not act along the direction of motion. Does that help?
@yamackocovali8075
3 жыл бұрын
@@stepbystepscience yes it does , thanks Do uhave these types of exercises but with friction?
@stepbystepscience
3 жыл бұрын
@@yamackocovali8075 Yes, I generally do a video without friction and then one with friction. Here is the link to the with friction video: kzitem.info/news/bejne/tHiI36Crkpyiq44
@lilakohis
3 жыл бұрын
if i pass physics im buying one of your shirts
@stepbystepscience
3 жыл бұрын
That's awesome, good luck!
@mickytube1935
4 жыл бұрын
6:54 it must be added rather than subtracted
@kookiemingyu175
3 жыл бұрын
Hello, I am having problems with that part. The sign should be negative because the it was moved to the other side. But Indeed, I do not obtain the correct answer when it is subtracted as stated on the video but when I add it I get a negative -24.9 (wherein it is positive on the video). Please help
@rl_flocky1462
3 жыл бұрын
My teacher slove the same equation but it's a different answer
@stepbystepscience
3 жыл бұрын
There are different ways to do it but you get the same answer.
@rl_flocky1462
3 жыл бұрын
@@stepbystepscience yes you're right. Sorry I was wrong. Because I have seen of you other videos and it was the same equation and the same answer. You are really good and we need people like you. I'm sorry again.
@iKingOf
4 жыл бұрын
no, thank you
@stepbystepscience
4 жыл бұрын
But why not?
@iKingOf
4 жыл бұрын
@@stepbystepscience I realize now how my comment may have been poorly thought out & confusing. What I meant was "Thank you the video was amazing & very helpful."
@matthewventus5452
7 жыл бұрын
cool beans
@kidflyer13
7 жыл бұрын
this dude sounds like vin diesel
@stepbystepscience
7 жыл бұрын
Either him or Tom Hanks but some times Vince Vaughn...
@caitlinyuen5140
3 жыл бұрын
here in 2020 check
@jenansamannaz4871
8 жыл бұрын
My teacher taught this the harder way. I am failing physics cos of my teacher
@stepbystepscience
8 жыл бұрын
KZitem can be helpful. A different perspective. You can see a listing of all my videos at my website, www.stepbystepscience.com
@richarc2307
7 жыл бұрын
Cosine
@seanbig859
5 жыл бұрын
You are a beautiful man and I just wanted you to know that
@jimmyohara2570
5 жыл бұрын
Thank you soo much
@stepbystepscience
5 жыл бұрын
You are very welcome, thanks for commenting!
@aleoghenamaxwell4296
8 жыл бұрын
Thanks so much
@stepbystepscience
8 жыл бұрын
Thanks for letting me know. Thank you for saying so, You can see a listing of all my videos at my website, www.stepbystepscience.com
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