$\"\"$

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The distance travelled by the object is $\"\"$ .

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Where,

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$\"\"$ is inclination.

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$\"\"$ is the initial velocity.

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$\"\"$

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(a)

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Find $\"\"$ when $\"\"$ and $\"\"$ feet/sec.

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Consider $\"\"$ .

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Substitute the values $\"\"$ and $\"\"$ .

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$\"\"$

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$\"\"$ ft.

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$\"\"$

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(b)

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Consider $\"\"$ .

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Substitute the value $\"\"$ .

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$\"\"$

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Draw a coordinate plane.

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Graph the function $\"\"$ in the interval $\"\"$ .

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Graph :

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$\"\"$

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$\"\"$

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(c)

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Observe the graph of the function $\"\"$ :

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The value $\"\"$ makes $\"\"$ largest. \ \

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Convert radians into degrees :

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$\"\"$

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$\"\"$

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(a)

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$\"\"$ ft.

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(b)

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Graph of the function $\"\"$ is : \ \

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$\"\"$

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(c)

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The value $\"\"$ makes $\"\"$ largest. \ \