Problema Solution
A 50 N.m torque acts on a wheel of moment of inertia 150 kg.m^2. If the wheel starts from rest,how long will it take the wheel to make one revolution?
Answer provided by our tutors
Torque = Moment of Inertia * angular acceleration
angular acceleration = 1/3 rad/s²
Angular displacement (rad) = 1/2(alpha)t²
angular displacement is one revolution or 2(pi)
t = sqrt(2(pi)/alpha))
t = 6.14 s