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7 May, 10:57

A 77.0 kg firefighter climbs a flight of stairs 8.0 m high. how much work is required? 0 incorrect: your answer is incorrect. j

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  1. 7 May, 13:11
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    6160 joules

    to lift 1 newton 1 metre requires 1 joule

    there are 10 newtons in one kilo

    so 77 (kg) x 8 (metres) x 10 (newtons/kilo) = 6160 joules
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