1. Calculate the AMA of a pulley system that has an effort force of 22N raising a load force of 37 N.

2. A girl pulls her younger sibling up a ramp that is 6.3 m long and 0.75 higher at the top than at the bottom. The effor force, applied to the parallel slope of the ramp, has a magnitude of 45 N, and the load force has a magnitude of 3.5x10^2 N. Calculate the AMA and IMA in this situation.

3.) Calculate the magnitude of kinetic friction acting on a 75 kg hockey player gliding across the ice on steel blades.

4.) If a 2.5 kg rubber ball is rolled across the dry concrete floor with an acceleration of 4.0 m/s^2 [E]. Determine the friction force required to stop the ball. (Drawing a free body diagram will help illustrate this situation).

5.) If you try to lift a 2 x 10 plank by applying a 25 N force but the plank does not move, was any work done? Explain why or why not. (2 marks)

6.) A pulley system is used to raise a shipping container from the dock to a cargo ship. An effort force, which moves a distance of 50 m, must have a magnitude 6.5 x 10^4N in order to lift the load a distance of 8.5 m. Calculate the magnitude of the load force. (5 marks)