1. The problem statement, all variables and given/known data A wheel decellerates from 100 rpm in 10 sec. Find angular acceleration, torque and the force torque is producing on a fixed object. The wheel has a radius of .0025m and a mass of 50kg. 2. Relevant equations T=Ia a=ra T=dL/dt 3. The attempt at a solution The first thing I did was change rpm to rad/sec which gave me 10.5 rad/sec. for angular acceleration i used: a=ra-> .0025*10.5/10 which gave me a=.002625 rad/sec^2. For torque i used 1/2*50*.0025^2*1.05 which gave me .00016 kgm^2. I am not sure where to go with this now, or even if I am headed in the right direction. Any suggestions would be greatly appreciated.