Three people are standing on a horizontally rotating platform in an amusement park. One person is...
Three people are standing on a horizontally rotating platform in an amusement park. One person is almost at the edge, the second one is (3/5)R from the center, and the third is (1/2)R from the center. Compare their periods of rotation, their speeds, and their radial accelerations.
Homework Answers
Solution:
1.They have same period of rotation as all have same angular speed(w).
2.Speed is given by
v =wr
where r = distance of person from center of platform.
So Speed is in the ratio of distance from center that is
3.Radial acceleration is given by
So radial acceleration is also in ratio of distance from the center that is
2.
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