VIDEO DOCUMENTATION ONLY!!!
Apparatus:
*Plastic tube (example, a pen, after removing the ink cartridge so that it is open from both ends.
*One (1) meter long nylon fishing string
*Two (2) hooked masses: 50 g and 100 g (which can be tied with a string).
*A stop watch
Procedure:
1. Tie the small hooked mass (50 g) with a nylon fishing string.
2. Insert the other end of the string into the plastic tube.
3. Tie the big hooked mass (100 g) with the other end of the string so that it is hanging from the
plastic tube.
4. Choose the radius of the circular path, in other words, the string length at the upper side(0.3 m, 0.4 m,0.5 m, 0.6 m, 0.7 m, 0.8 m, 0.9 m, and 1.0 m) and hold the plastic tube from its edge to prevent the rope
from sliding.
5. Rotate the smaller mass (50 g) in a horizontal circular motion above your head while keeping the hanging side without touching it.
6. When you feel that the motion is steady and uniform, release the rope from the plastic tube side to be free while rotating as in the figure below.
7. When the velocity is constant, ask your groupmate to start recording the time at a certain point you agree upon and simultaneously count 10 completed cycles executed by the smaller (50g) mass.
8. Repeat the experiment four times and record the results in the table below. Make sure that all the measurements are expressed in the International System of Units (SI).
9. Plot a graph of velocity vs. radius and another graph for centripetal force vs. period based on the results of the experiment.
Негізгі бет Circular Motion_ Physics for Engineers | Experiment No. 2 "CENTRIPETAL FORCE" | video documentation
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