A particle of mass $2\, kg$ is initially at rest. A force acts on it whose magnitude changes  with time. The force time graph is shown below. The velocity of the particle after $10\, s$ is ......... $ms^{-1}$

820-1744

  • A

    $20$

  • B

    $10$

  • C

    $75$

  • D

    $50$

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