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A cannon shell is fired to hit a target ...

A cannon shell is fired to hit a target at a horizontal distance R. However, it breaks into two equal parts at its highest point. One part (A) returns to the cannon. The other part is:

A

will fall at a distance `R` beyond the target

B

will fall at a distance `2R` beyond the target

C

will fall at a distance `3R` beyond the target

D

have nine times the kinetic energy of `A`

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