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.
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