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A projectile of mass "m" is projected fr...

A projectile of mass "m" is projected from ground1 with a speed of 50 m/s at an angle of `53^(@)` with the horizontal. It breaks up into two equal parts at the highest point of the trajectory. One particle coming to rest immediately after the explosion.
The distance between the pieces of the projectile when they reach the ground are :

A

240

B

360

C

120

D

none

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