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A projectile of mass 3m explodes at high...

A projectile of mass 3m explodes at highest point of its path. It breaks into three equalparts. One part retraces its path, the second one comes to rest. The range of the projectile was 100 m if no explosion would have taken place. The distance of the third part from the point of projection when it finally lands on the ground is -

A

100 m

B

50 m

C

250 m

D

300 m

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