In a two dimensional motion, instantaneous speed `v_(0)` is a positive constant. Then which of the following are neccessarily true?

Options

A. The acceleration of the particle is zero
B. The acceleration of the particle is bounded
C. The acceleration of the particle is necessarily in the plane of motion
D. The particle must be undergoing a uniform circular motion

Answer

C

Explanation

As given motion is two dimensional motion and given that instantaneous speed `v_(0)` is positive constant. Acceleration is rate of change of velocity (instantaneous speed) hence it will also be in the plane of motion.