Paul exerts a force of 375 N to pull a rope 4.20 m. The rope is attached to a block and tackle (A system of multiple pulleys) which lifts a 1345 N weight to a height of 0.975 M above the floor.
A: How much work does Paul do?
B: What is the work done on the object by the block and tackle
C: What is the mechanical advantage of the block and tackle
D: How efficient is the system?
