Two cars P and Q start from a point at the same time in a straight line and their position are represented by x_(p)(t)=at+bt^(2) and x_(1)(t)=ft-t^(2).At What time do the cars have the same velocity ?

Two cars P and Q start from a point at the same time in a straight lin

1.	Two cars P and Q start from a point at the same time in a straight line and their position are represented by x_(p)(t)=at+bt^(2) and x_(1)(t)=ft-t^(2).At What time do the cars have the same velocity ?
Answer» `(a-f)/(1+b)` `(a+f)/(2(b-1))` `(a+f)/(2(1+b))` `(f-a)/(2(1+b))` ANSWER :D

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Two cars P and Q start from a point at the same time in a straight line and their position are represented by x_(p)(t)=at+bt^(2) and x_(1)(t)=ft-t^(2).At What time do the cars have the same velocity ?

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