The record for the highest speed achieved in a laboratory for a uniformly rotating object was 2.01 x 10^3 m/s for a 0.15-m long carbon rod. Consider that the carbon rod was rotating about its center. What was the period of rotation of the rod?

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.