How much gravity is done by a workman carrying a 8kg sheet plywood up a 3m ramp inclined at an angle of 20 degrees to the horizontal?

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asked Oct 24, 2018 190k views

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Haduki · Answer 1 · 2018-10-28T13:35:00+0000

Work is force times distance. Note that the only work done here is in the direction opposed to gravity, or if you prefer the change in height times the weight...

W=3sin20(8*9.8)

W≈80.44 J

How much gravity is done by a workman carrying a 8kg sheet plywood up a 3m ramp inclined at an angle of 20 degrees to the horizontal?

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