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Acceleration-time graph of a particle moving in a straight line is as shown in figure. At tin $t = 0$ , velocity of the particle is zero, Find velocity of the particle at $t = 14 s$ ?

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180 m/s

108 m/s

100 m/s

90 m/s

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detailed solution

Correct option is D

Δv=vf-vi= net area of a-t graph∴ v14-v0=40+30+40-20=90 But v0=0 ∴ v14=90 m/s

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Acceleration-time graph of a particle moving in a straight line is as shown in figure. At tin t=0, velocity of the particle is zero, Find velocity of the particle at t=14 s?

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Acceleration-time graph of a particle moving in a straight line is as shown in figure. At tin $t = 0$ , velocity of the particle is zero, Find velocity of the particle at $t = 14 s$ ?