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A shell of mass 5 m, acted upon by no e...

A shell of mass 5 m, acted upon by no external force and initially at rest , burts into three fragments of masses m, 2 m, 2 m respectively . The first two fragments move in opposite directions with velocites magnitude 2 v and v respectively . The third fragment will

A

Move with a velocity v in direction perpendicular to the other two

B

Move with a velocity 2 v in the direction of velocity of the first fragment

C

Move with a velocity v in the direction of velocity of the second fragment

D

Be at rest

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The correct Answer is:
D
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