Solve the all parts of given question:
Question: A 0.15-m-diameter pulley turns a belt rotating the driveshaft of a power plant pump. The torque applied by the belt on the pulley is 200 Nm, and the power transmitted is 7 kW.
Part A: Determine the net force applied by the belt on the pulley, in kN?
Part B: Determine the rotational speed of the driveshaft, in RPM.
Please use as much detail as possible in answer!!!