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Physics 17 Online
OpenStudy (anonymous):

A mover uses a ramp to load a crate of nails onto 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 is 4.6 m long and friction between the ramp and crate can be ignored what is the mechanical advantage of the ramp?

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