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A car, starting from rest, accelerates a...

A car, starting from rest, accelerates at the rate f through a distance s, then continues at constant speed for time t and then decelerates at the rate f/ 2 to come to rest. If the total distance travelled is 15 s, then

A

`S=ft`

B

`S=(1)/(6)ft^(2)`

C

`S=(1)/(2)ft^(2)`

D

`S=(1)/(72)ft^(2)`

Text Solution

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The correct Answer is:
D
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