Solving a Ramp Problem: Calculating Forces and Work Done on a Sliding Piano

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To solve the problem of a 280kg piano sliding down a 30-degree incline, the forces acting on the piano must be analyzed, including gravity, friction, and the force exerted by a man pushing against it. The effective coefficient of kinetic friction is 0.40, which affects the frictional force opposing the motion. Since the piano does not accelerate, the net force is zero, allowing for the calculation of the man's force, work done by him, work done by friction, work done by gravity, and the net work on the piano. The discussion emphasizes the importance of drawing a free-body diagram to visualize the forces involved. Understanding these concepts is crucial for accurately calculating the required values.
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Homework Statement



A 280kg piano slides 4.3 meters down a 30 degree 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 .40. Calculate: a) The force exerted by the man. b) The work done by the man on the piano. c) the work done by the friction force. d) The work done by the force of gravity. e) The net work done on the piano

Homework Equations



Well I know since it's kept from accelerating, the sum of all forces of work is 0.

The Attempt at a Solution



I honestly don't know where to start.
 
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Draw the forces on the piano. You know what they all sum to.
 
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