Question

6. A body moving along a circular path covers a distance of 3 mm is foly, she body
returns to its starting point.
(a) Is the body moving with uniform speed? Explain.
(b) is the body moving with uniform velocity? Explain
(c) is the motion of body along the circular path accelerated? Explain​

Answer 1

(1) : If a body moving in a circular path has a constant speed, then there is no force acting on it. (2) : The direction of the velocity vector of a body moving in a circular path is changing

Answer. The work done on a body moving in a circular path is also zero. This is because, when a body moves in a circular path, then the centripetal force acts along the radius of the circle, and it is at right angles to the motion of the body. Thus, the work done in the case of moon moving round the earth is also zero