Q. Velocity vector and acceleration vector in a uniform circular motion are related as
A) Both in the same direction
B) Perpendicular to each other
C) Both in opposite direction
D) No related to each other
Explanation
(b) One circular motion, the force acts along the radius and displacement at a location is perpendicular to the radius $ie,\ \theta = 90{^\circ}$
As work done$\ = \overrightarrow{\mathbf{F}}\mathbf{\bullet}\overrightarrow{\mathbf{s}} = Fs\cos{90{^\circ}} = 0$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.