What is the work completed by the force of gravity

Reference no: EM1390560

Q. A 270 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.

Calculate the work done by the friction force.

What is the work completed by the force of gravity?

Reference no: EM1390560

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