A wheel initially spinning counter-clockwise slows down because a constant clockwise…
PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A wheel initially spinning counter-clockwise slows down because a constant clockwise torque is applied. During the interval the wheel turns 1.5rad counter-clockwise. Which statement best describes the sign of the work done by the applied torque?
(a) Negative, because the torque is opposite to the angular velocity of the wheel.
(b) Zero, because the wheel does not complete a full revolution.
(c) Negative, because the torque and angular displacement are in opposite directions.
(d) Positive, because the wheel’s angular displacement is counter-clockwise.