Answer to Question #260007 in Physics for Mule

Question #260007

A 200-kg piano on frictionless casters is to be pushed up a 7-m ramp to a loading platform 1 m above the ground. How much force is needed?

Expert's answer

"F=mg\\sin\\alpha=200\\cdot9.81\\cdot(1\/7)=280.3\\ (N)"

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