The engine of a motorcycle can produce a maximum acceleration $5 \,ms^{-2}$. Its brakes can produce a maximum retardation $10\, ms^{-2}$. What is the minimum time in which it can cover a distance of $1.5\, km$.........$sec$

  • A

    $30$

  • B

    $15$

  • C

    $10$

  • D

    $5 $

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