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16 January, 04:16

A 75.0 kg sailor climbs a 28.3 m rope ladder at and angle of 45.0degrees with the mast. how much work did he do?

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  1. 16 January, 07:36
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    W = m · g · h

    h = 28.3 m · sin 45° = 28.3 m · 0.707 = 20 m

    g = 9.8 m/s²

    W = 75 kg · 9.8 m/s² · 20 m

    Answer:

    W = 14,700 J = 14.7 kJ
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