A boy in a wheelchair total mass 510 kg has speed 140 ms at, Physics

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A boy in a wheelchair total mass 510 kg has speed 140 ms at

A boy in a wheelchair (total mass 51.0 kg) has speed 1.40 m/s at the crest of a slope 2.40 m high and 12.4 m long. At the bottom of the slope his speed is 6.10 m/s. Assume air resistance and rolling resistance can be modeled as a constant friction force of 41.0 N. Find the work he did in pushing forward on his wheels during the downhill ride.

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Physics: A boy in a wheelchair total mass 510 kg has speed 140 ms at

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Physics: A boy in a wheelchair total mass 510 kg has speed 140 ms at

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