A particle moves at constant speed in a circular path.The instantaneous velocity and instantaneous acceleration vectors are:
A)both tangent to the circular path
B)both perpendicular to the circular path
C)perpendicular to each other
D)opposite to each other
E)none of the above

Question

Quizplus · Accepted Answer

The instantaneous velocity vector of a particle moving in a circular path is always tangent to the circle at the particle's position, while the instantaneous acceleration vector (centripetal acceleration) is always directed towards the center of the circle, making them perpendicular to each other.

A Particle Moves at Constant Speed in a Circular Path