$A$ man on a rectilinearly moving cart,facing the direction of motion,throws a ball straight up with respect to himself.

  • A
    The ball will always return to him.
  • B
    The ball will fall behind him if the cart moves with some acceleration.
  • C
    The ball will return to him if the cart moves with constant velocity.
  • D
    Both $(B)$ and $(C)$.

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