Question

Two cars P and Q start from a point at the same time in a straight line and their positions are represented by Xₚ (t) = at + bt² and Xǫ(t) = ft – t². At what time do the cars have the same velocity?
(1) (a – f) /(1 + b) (2) (a + f) /2(b – 1) (3) (a + f) /2(1+ b)
(4) (f – a) / 2(1 + b)

Answer 1

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