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What is the magnitude and sign of the work done by the earth gravitational force acting on (a) a ball thrown vertically (neglect friction); (b) a

What is the magnitude and sign of the work done by the earth gravitational force acting on 

(a) a ball thrown vertically (neglect friction);

(b) a satellite orbiting earth on a circular orbit, and

(c) the moon while orbiting earth.

Top Answer

a. The magnitude is equal to  W ​ g ​ ​ = m ∗ g ∗ Δ Y  The sign is... View the full answer

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a) W ork done by the earth gravitational force acting on  when ball is thrown vertically upward W g  = -mgh Work done by... View the full answer

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