1. The problem statement, all variables and given/known data If the steel disk has mass of 200 kg and a radius of 2 meters you can make it spin by applying a force to the rim. This torque increases the angular momentum of the disk. Suppose the force is 20 newtons. How long would you have to apply it to get the wheel spinning 5 times a minute? What would happen to the rate of spin if you then jumped on the rim of the wheel with your mass of 60 kg? 2. Relevant equations I=1/2mr2 I1*w0/(i1+i2) 3. The attempt at a solution I think I have all the variables figured out I am just having an issue solving the questions. I have the w=0.1rad/s , I =400 kg*m^2, t=40 N*m. For the second problem I got the w2=0.07rad/s which would mean the merry go rounds rate of spin would decrease by .03 rad/s when the mass of 60kg jumps on. (400)(0.1)/(320+240) = 40 / 560 =0.07rad/s Any help would be appreciated thanks!