Mathematics, 01.03.2021 08:40 genyjoannerubiera

A firecracker of mass is moving at a speed in the positive -direction. It explodes and breaks up into two identical fragments, each of mass . After the explosion, one fragment moves at the same speed but in the negative
-direction. The speed of the second fragment must be

A v
B 2v
C 3v
D 4v
E 5v

Please provide justification

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