4. A wooden pallet carrying a load of 500 kg (neglect the weight of the pallet) rests on a concrete floor. A forklift driver is lazy and decides to push the pallet without lifting it. (6 pts) a. What force must be applied to push the pallet without lifting it? This is the force to just get the pallet moving (breaking static friction). The coefficient of static friction between the pallet and concrete is us = 0.24. (1 pts) b. As the pallet begins to move, the forklift continues to apply the same force. After 2 seconds, how fast is the pallet moving? The coefficient of kinetic friction between the pallet and concrete is us = 0.16. (1 pts) c. At 2 seconds, the fork lift stops and the pallet continues to slide. How far will the pallet slide once the fork lift stops pushing? (1 pts) d. How much work is done by the forklift? (1 pts) e. How much work is done by the concrete on the pallet (i.e. friction)? (2 pts)