Circular Motion with Tangential Acceleration · PhysicsBowl 2022 #22
Physics · mechanics
Problem
An object starting from rest moves on a circular path with a radius 40 cm and a constant tangential acceleration of 10 cm/s². How much time is needed after the motion begins for the centripetal acceleration of the object to be equal to the tangential acceleration?
a. 0.2 s b. 1.0 s c. 1.2 s d. 1.8 s e. 2.0 s