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Physics 8 Online
OpenStudy (anonymous):

A mover uses a ramp to load a crate of nails onto his a truck. The crate, which must be lifted 1.4 m from the street to the bed of the truck, is pushed along the length of the ramp if the ramp 4.6 m long and friction between the ramp and the crate can be ignored, what is the mechanical advantage of the ramp?

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