Two particles A and B are moving along x-axis. Their x-coordinate versus time graphs are as shown below. Find the velocities of the two particles.

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vA=2.5 m/s ,vB=7.5 m/s

vA=2.5 m/s ,vB =7.5 m/s

vA = 3.75 m/s ,vB=2.75 m/s

vA =7.5 m/s , vB = 2.5 m/s

answer is B.

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Detailed Solution

v = slope of x-t graph vA=30-108m/s=2.5 m/svB=308-4m/s=7.5 m/s

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