A 50 kg block of ice slides downa frictionless incline 1.5 m long and 0.89 m high. A worker pushes up against the ice, parallel to the incline, so that the block slides down at constant speed.
a) Find the magnitude of the worker's force.
How much work is done on the block by the following forces?
b) the worker's force
c) the gravitational force on the block
d) the normal force on the block from the surface of theincline
e) the net force on the block