1.

two car p and Q start from a point at the same time in a straight line and their positions are represented by ​

Answer»

Answer:

d) is CORRECT answer

Explanation:

FUNCTION of POSITION is given

differentiate both the expression wrt time to OBTAIN expression for their velocities

V1= a + 2bt

V2 = f-2t

let at time t both cars have same velocity

a+2bt = f-2t

a-f= t(-2-2b)

t= (f-a)/2+2b



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