Question

A body is moving on a circular path of radius 42m find the distance travelled and displacement if it completed 3 and 1/4 revolution on the circular path

Answer 1

when body covers 3 revolution then the total distance is equal to 3 × circumference = 3× 22/7× 2× 42 = 132 m. and when the body will make 1/4 revolution then distance = 1/4 × circumference = 44/4 = 11 m..

now , displacement of the body when it make 3 revolution = 0 and when it make 1/4 revolution is 11m