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A light rope(negligable mass) is used to pull a 4.8 kg sled up a 25° slope....

A light rope(negligable mass) is used to pull a 4.8 kg sled up a 25° slope. If the rope is kept parallel to the slope, and there is a constant frictional force of 120 N, what force must be applied to the rope to accelerate the sled at a rate of 2.5 m/s^2?
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