$\"\"$

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$\"\"$ are the velocities of the car $\"\"$ and car $\"\"$ in meter per second.

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(a)

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$\"\"$ represents that car $\"\"$ is travelled $\"\"$ more than the car $\"\"$ travelled in $\"\"$ seconds.

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$\"\"$ represents that car $\"\"$ is travelled $\"\"$ more than the car $\"\"$ travelled in $\"\"$ seconds.

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$\"\"$ represents that car $\"\"$ is travelled $\"\"$ more than the car $\"\"$ travelled in $\"\"$ seconds.

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$\"\"$

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(b)

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The initial distance between the two cars are unknown values.

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Therefore, it is not possible to determine the distance between the two cars when $\"\"$ .

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$\"\"$

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(c)

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Consider the integral $\"\"$ , the car $\"\"$ is ahead by $\"\"$ when $\"\"$ .

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$\"\"$

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(d)

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The car $\"\"$ is ahead of car $\"\"$ by $\"\"$ when $\"\"$ .

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Consider the integral $\"\"$ , represents that car $\"\"$ is travelled $\"\"$ more than the car $\"\"$ travelled in $\"\"$ seconds.

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Hence the car $\"\"$ is $\"\"$ ahead by the car $\"\"$ .

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Therefore, the car $\"\"$ is $\"\"$ ahead by the car $\"\"$ .

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$\"\"$

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(a)

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$\"\"$ represents that car $\"\"$ is travelled $\"\"$ more than the car $\"\"$ travelled in $\"\"$ seconds.

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$\"\"$ represents that car $\"\"$ is travelled $\"\"$ more than the car $\"\"$ travelled in $\"\"$ seconds.

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$\"\"$ represents that car $\"\"$ is travelled $\"\"$ more than the car $\"\"$ travelled in $\"\"$ seconds.

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(b) It is not possible to determine the distance between the two cars when $\"\"$ since the initial distance between the two cars are unknown values.

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(c) The car $\"\"$ is ahead by $\"\"$ when $\"\"$ .

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(d) The car $\"\"$ is $\"\"$ ahead by the car $\"\"$ .