$\"\"$

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Consider the acceleration of the car is $\"\"$ .

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Initial velocity of the car is $\"\"$ mi/h $\"\"$ ft/s.

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Final velocity of the car after $\"\"$ s is $\"\"$ mi/h $\"\"$ ft/s.

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The acceleration of the object is $\"\"$ , where $\"\"$ is the velocity.

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Hence $\"\"$ .

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The antiderivative of $\"\"$ is

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$\"\"$

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$\"\"$ , where $\"\"$ is the constant.

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$\"\"$

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Initial condition :

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

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$\"\"$

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Therefore the initial velocity of the car is $\"\"$ .

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Final condition :

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Final velocity of the car after $\"\"$ s is $\"\"$ mi/h $\"\"$ ft/s.

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Hence $\"\"$ .

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

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$\"\"$

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Therefore the acceleration of the car is $\"\"$ ft/s².

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$\"\"$

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The acceleration of the car is $\"\"$ ft/s².