A 75.O-kg painter climbs a ladder that is 2.75 m long leaning against a vertical wall. The

Question:

A 75.O-kg painter climbs a ladder that is 2.75 m long leaning against a vertical wall. The ladder makes an 30.0° angle with the wall.
(a) How much work does gravity do on the painter?
(b) Does the answer to part (a) depend on whether the painter climbs at constant speed or accelerates up the ladder?