A 305 kg piano slides 4.0 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40.
force exerted by the man = 459 N
work done by the man on the piano = -1836 J
work done by the friction force. = -4141 J
work done by the force of gravity = 5978
(e) What is the net work done on the piano?
? J
force exerted by the man = 459 N
work done by the man on the piano = -1836 J
work done by the friction force. = -4141 J
work done by the force of gravity = 5978
(e) What is the net work done on the piano?
? J