Q. A particle is moving in a horizontal circle with constant speed. It has constant
A) Velocity
B) Acceleration
C) Kinetic energy
D) Displacement
Explanation
(c) $K.E. = \frac{1}{2}mv^{2}.$ Which is scalar, so it remains constant
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.