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A ramp 20m long slopes down 1.2m to the edge of a lake. A force of 300N is needed to pull a boat on a

A ramp 20m long slopes down 1.2m to the edge of a lake. A force of 300N is needed to pull a boat on a trailer at constant speed up the ramp when they are clear of the water. If friction is negligible, what is the combined mass of the boat and trailer.

Hints: Calculate MA of inclined plane. Then use definition of MA= Force Out/ Force in

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