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1 November, 23:57

A 73.0 kg firefighter climbs a flight of stairs 9.0 m high. how much work is required? j

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  1. 2 November, 00:21
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    The strength of the fireman in vertical direction will be given by F = m * g. Then, the work done will be given by definition by W = F * d. Substituting the expression of the Force in that of the work, we have that the work will be W = m * g * d. Substituting the given values and assuming that g = 10m / s ^ 2, we have a total work of W = (73) * (10) * (9) = 6570 J
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