Answer to Question #177057 in Physics for Andu

Question #177057

5. A body, with mass m = 5 kg, rises with constant velocity at height h = 10 m under the action of a force F. Find the work done on the body: a) by the force F b) by the gravitational force of the Earth :

Expert's answer

a)

"W_F=mgh=(5)(9.8)(10)=490\\ J"

b)

"W_G=-W_F=-490\\ J"

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