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A personal lifts a box of mass 10kg a distance of 3 meters above its original...

A personal lifts a box of mass 10kg a distance of 3 meters above its original height (at a constant velocity)

a. What is the work done by the weight?

b. What is the work done by the person?

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Answer #1

m=Lokg h=3m Part (a) @ W = mgh cos 180 ..to . = LOX9.9X3 X-1 = -294 Joule I 6 h = mgh (oso° = 10 X 9.8X3 = 294 Joule

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