Question

power is the rate at which
work is done.
a) Express power in terms of force and velocity
b) An elevator carrying the maximum
load of 1800 kg is moving up with
a constant speed of 2m/s. The
frictional force opposing the
motion is 4000 N. Determine the
minimum power delivered by the
motor to the elevator.
c) Express your above answer in
horse power.​

Answer 1

Answer:

a) P= F. v (scalar product)