An object is spun around in circular motion such that its frequency is 500 Hz. a. What is the period of its rotation?
b.
HowW much time will be required to complete 7 rotations?

Explanation:

Given parameters:

Frequency  = 500Hz

Unknown:

a. Period of rotation

b. Time required to complete 7 rotation

Solution:

The period of rotation is the time taken to complete a turn.

      P =

P is the period

t is the time

n is the number of turns

  Period is the inverse of frequency;

        P =   = 0.002s

b.

Time required to complete 7 rotation;

            P  =  

           t  = P x n

t is the time

P is the period

n is the number of rotations

          t  = 0.002 x 7  = 0.014s