Briefly explain the benefit of using a lever to lift a heavy object.
A force of only 150 N can lift a 600 N sack of flour to a height of 0.50 m when using a lever as shown in the diagram below.
a. Find the work done on the sack of flour (in J).
b. Find the distance you must push with the 150 N force on the left side (in m).
c. Briefly explain the benefit of using a lever to lift a heavy object.
