1. The problem statement, all variables and given/known data A grinding wheel is a uniform cylinder with a radius of 8.10 cm and a mass of 0.550 kg. (a) Calculate its moment of inertia about its center. kg·m2 (b) Calculate the applied torque needed to accelerate it from rest to 1700 rpm in 2.00 s if it is known to slow down from 1700 rpm to rest in 55.0 s. m·N m= .550 kg r= .081 m 2. Relevant equations I have tried I=mr^2, but that is not working. That is all I know how to do. 3. The attempt at a solution Attempted I=(.550)(.081)^2 and got a very small decimal that was incorrect. I would love to know how this equation is done. Thank you!