I don't completely understand what this question is asking:

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.
I don't know how to find all that with the information given can someone explain what I'm suppose to do?

2 answers

clearly, since they are all on the same rigid platform, their rotational periods are all the same.

Since the circumference is just a constant times the radius, their speeds are in the same proportion as their radii. Someone 1/2 as far out is going 1/2 as fast.

since the radial acceleration is v^2/r, someone twice as far out (2r) will have

a = (2v)^2/(2r) = 2(v^2/r)

or, twice the acceleration.
What are the #s for the problem .. like what is v what is r
Similar Questions
  1. Which best describes your ability to use graphs to model relationships?(1 point) Responses I understand completely and I can
    1. answers icon 1 answer
  2. Which best describes your ability to use graphs to model relationships?(1 point) Responses I understand completely and I can
    1. answers icon 1 answer
  3. Which best describes your ability to graph an inequality?(1 point) Responses I understand completely and I can graph
    1. answers icon 1 answer
    1. answers icon 3 answers
more similar questions