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

asked Nov 5, 2019 157k views

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3 votes

W.d = mgh

23520 = m × 9.81 × 30
23520 ÷ (9.81 × 30 ) = m

Demokritos answered Nov 9, 2019

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