Question

A body starts performing uniform circular motion with 100 revolutions per minute after how much minimum time its average velocity will be zero?

Answer 1

Given:-

After completing 1 round it's average velocity will become zero as displacement will be zero.

To Find:-

time taken to complete it's average velocity will be zero.

Solution:-

Time spent in one round =

$\sf\frac{1min}{100revolution} = \frac{60s}{100} = 0.6s$

Answer 2

1 min/1 revolution = 60 s /100 = 0.6 s