asked 83.0k views
2 votes
How much work is done when a hoist lifts a 290-kg rock to a height of 7 m?

asked
User Tiltem
by
8.2k points

1 Answer

5 votes
Given: Mass m = 290 Kg; Height h = 7 m

Required: Work = ?

Formula: Work = Force x distance but, Force F = mg

W= fd

W = mgh

W= (290 Kg)(9.8 m/s²)(7 m)

W = 19,894 Kg.m²/s²

W = 19,894 J




answered
User ChuckSaldana
by
8.3k points
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