A body is moving with constant speed, in a circle of radius 10 m . The body completes one revolution in 4 s . At the end of 3 r d second, the displacement of body (in m ) from its starting point is:

Step-by-step solution

Give: r = 10   m , T = 4   s . Displacement is defined to be the change in position of an object. As we can see from the above figure, displacement will be d = r 2 + r 2 ⇒ d = 10 2   m