The equation of motion of a projectile is $y = Ax -Bx^2$ where $A$ and $B$ are the constants of motion. The horizontal range of the projectile is

  • A

    $\frac{A}{B}$

  • B

    $\frac{B}{A}$

  • C

    $\frac{A^2}{B}$

  • D

    $\frac{B^2}{A}$

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