A door rotates about a vertical -axis passing through its hinges
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Energy and Momentum of Rotating Systems · Energy and Momentum of Rotating Systems
Problem
A door rotates about a vertical z-axis passing through its hinges. At one instant the net torque acting on the door is τ=4^+3^+0k^N⋅m. If the door turns through 90∘ about the z-axis during this interval, determine the work done on the door by the torque.