Question

A grinding wheel is a uniform cylinder with a radius of 8.50 cm and a mass of 0.630 kg.

a) Calculate its moment of inertia about its center.

b) Calculate the applied torque needed to accelerate it from rest to 1750 rpm in 7.40 s . Take into account a frictional torque that has been measured to slow down the wheel from 1500 rpm to rest in 53.0 s.

Answer 1