Suppose a 1450-kg elevator car is
lifted a distance 42 m by its
cable at a constant speed, assuming the frictional force on the
elevator has a constant value
of 1750 N.
Calculate the work done on the elevator by its cable, in
joules.
Calculate the work done by the gravitational force on the
elevator, in joules, during this process.
Calculate the total work done on the elevator, in
joules.