Acceleration of a car the distance s in feet covered by a


Question: ACCELERATION OF A CAR The distance s (in feet) covered by a car t sec after starting from rest is given by

s = -t3 + 8t2 + 20t           (0 ≤ t ≤ 6)

Find a general expression for the car's acceleration at any time t(0 t 6). Show that the car is decelerating 2 sec after starting from rest.

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Mathematics: Acceleration of a car the distance s in feet covered by a
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