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Figure 7.22b shows the potential-energy function

Chapter 9, Problem 19DQ

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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 always fall toward the earth when they are released.

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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 always fall toward the earth when they are released.

ANSWER:

Solution 19DQ Step 1: From the graph, we can see that, if a body is projected upward for a height “y”, the body will acquire a potential energy at that height and it will be, U = mgy Where, m - mass of the body g - acceleration due to gravity

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