Stan raises a 1200-N piano a distance of 5.00 m using a set ofpulleys. Stan pulls in 20.0 m of rope.
a) How much effort force would Stan apply if this were anideal machine?
b) What force is used to balance the friction force if theactual effort is 340-N?
c) What is the work output?
d) What is the input work?
e) What is the mechanical advantage?