A wheel is slowing down with a constant angular acceleration that acts opposite to…
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics
Problem
A wheel is slowing down with a constant angular acceleration that acts opposite to the direction of its rotation. Explain how the signs of angular acceleration and angular displacement should be chosen in the time-independent rotational kinematic equation so that the calculated final angular velocity has the correct sign.