A point moves along a circle of radius with constant tangential acceleration

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A point moves along a circle of radius

20\text{ cm}

with constant tangential acceleration

5\text{ cm/s}^2

. How much time is needed after the motion begins for the normal acceleration to equal the tangential acceleration? (1) 1 s (2) 2 s (3) 3 s (4) 4 s