$\"\"$

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a.

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Find the initial speed, $\"\"$ . \ \

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The posotion equations are $\"\"$ and $\"\"$ .

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The horizontal position equation is $\"\"$ .

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Substitute $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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$\"\"$ .

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$\"\"$

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b.

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The horizontal position equation is $\"\"$ .

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Substitute $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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At $\"\"$ the ball reach the second player if the second player is standing about $\"\"$ feet away.

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$\"\"$

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c. \ \

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The vertical position equation is $\"\"$ .

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Substitute $\"\"$ , $\"\"$ , $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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Draw a coordinate plane.

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Graph the function $\"\"$ .

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Graph :

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$\"\"$

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Observe the graph :

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The positive zero of the graph of the function is about $\"\"$ .

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Thus, $\"\"$ .

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Substitute $\"\"$ in horizontal position equation $\"\"$ .

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$\"\"$

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This means when the frog reaches the surface of the water, he is only about $\"\"$ from from where he jumped.

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Therefore, he is about $\"\"$ from the other bank.

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$\"\"$

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a.

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$\"\"$ .

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b.

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$\"\"$ .

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c.

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$\"\"$ .