Question

A body cover a semi circle of radius 7cm in 5sec.find its velocity

Answer 1

the velocity is given as

v = displacement / time

here

displacement  = radius of the circle = 7 cm = 0.07 m

and time = 5 seconds

thus,

v = 0.07/5 = 0.014 m/s

Answer 2

Velocity= Displacement/ time taken
Velocity= 0.07/5=
0.014m/s