Question: Figure 7.22b shows the potential energy function associated with the gravitational force between an object and the earth. Use this graph to explain why objects

Figure 7.22b shows the potential energy function associated with the gravitational force between an object and the earth. Use this graph to explain why objects always fall toward the earth when they are released.

Figure 7.22b

Gravitational potential energy and force as functions of y

F, Potential energy For all y, F, < 0; force pushes body toward decreasing y. decreases as y decreases. -mg dy U = mgy F

F, Potential energy For all y, F, < 0; force pushes body toward decreasing y. decreases as y decreases. -mg dy U = mgy F =

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