A bicycle wheel is spinning clockwise at a constant rate
PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A bicycle wheel is spinning clockwise at a constant rate. A mechanic then applies a constant counterclockwise torque to the rim. Which statement best describes the wheel’s instantaneous angular acceleration just after the torque is applied?
(a) It is counterclockwise, causing the magnitude of the clockwise angular velocity to decrease.
(b) It is clockwise, causing the wheel to spin faster in the clockwise direction.
(c) It is zero because the wheel was already rotating at a constant speed.
(d) It is counterclockwise, causing the wheel to instantly reverse and spin counterclockwise.