Question

A body is moving in a circular path of radius 20m completes one whole revolution in 10 sec. Calculate the speed of the Object.​

Answer 1

Answer:

speed=2πr/t

=2×22×20/7×10

=880/70

=88/7

=11.14m/sex

Answer 2

Answer:

12.57 m/s

Explanation:

Given :

Radius of the circular path = 20 metres

Time taken to complete one round of revolution = 10 seconds

To find:

Speed of the object going around the circular which has a radius of 20 metres and completes one revolution in 10 seconds

We know that speed = distance /time

Substituting the values :

Distance = 2×pi×r

Distance = 2×22/7×20

Distance = 880/7

Time = 10 seconds

Speed = (880/7)/10

Speed = 88/7 m/s

Speed = 12.57 m/s

The speed of the object around a circular track of 20 m and time 10 seconds is 12.57 m/s