Question
A spinning flywheel has rotational inertia I = 401.9 kg · m2. Its angular velocity decreases from 20.5 rad/s to zero in 257.1 s due to friction. What is the frictional torque acting?
Answers
Elena
0 =ω - ε•t.
ε = ω/t.
M=I• ε
ε = ω/t.
M=I• ε