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A bomb is kept stationary at a point. It...

A bomb is kept stationary at a point. It suddenly explodes into two fragments of masses 1 g and 3 g. the total K.E. of the gragments is `6.4xx10^(4)J`. What is the K.E. of the smaller fragment

A

`2.5xx10^4J`

B

`3.5xx10^4J`

C

`4.8xx10^4J`

D

`5.2xx10^4J`

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