Question

Choose from the following and explain your answer.

While a car travels around a circular track at constant speed its.

A. Velocity is Zero

B. Acceleration and velocity are Zero

C. Acceleration and velocity are Not Zero

Answer 1

when a car travels on a circular path with constant speed then its Velocity is not zero, magnitude of velocity is magnitude of speed. on circular path direction of particle during motion changes continuously so its velocity is not constant , we know when velocity changes then there is an acceleration, in this situation there is also an acceleration whose direction is always toward the centre known as centripetal or radial acceleration. Hence during motion of particle on circle with constant Speed there is Non zero Velocity &Non zero Acceleration. Hence our choice is option C.