A particle of mass $7\, kg$ moving at $5\, m/s$ is acted upon by a variable force opposite to its initial direction of motion. The variation of force $F$ is shown as a function of time $t$.

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  • A

    at $t = 10\, s$ speed of particle is $5\, m/s$

  • B

    at $t = 10\, s$ direction of motion of particle is reversed

  • C

    at $t = 5\, s$ the particle will momentarily at rest

  • D

    all the above options are correct.

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