kendra02 kendra02

06-12-2016
Physics

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A window washer stands on a scaffolding 30 meters above the ground. If he did 23,520 joules of work to reach the scaffolding what is his mass

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Аноним Аноним

06-12-2016

Work done by gravity = 23,520 J = mgh. Therefore m= 23520/ 30 x 9.8 = 80 kg.

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