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A bomb of mass 6 kg initially at rest ex...

A bomb of mass 6 kg initially at rest explodes in to three identical fragments. One of the fragments moves with a velocity of `10sqrt(3)hatim//s` , another fragment moves with a velocity of `10hatjm//s`, then the third fragment moves with a velocity of magnitude.

A

30 m/s

B

20 m/s

C

15 m/s

D

5 m/s

Text Solution

Verified by Experts

The correct Answer is:
B
`P_(3)=-(P_(1)+P_(2)), P_(3)=sqrt(P_(1)^(2)+P_(2)^(2))`,
`m_(3)v_(3)=sqrt((m_(1)v_(1))^(2)+(m_(2)v^(2))^(2))`
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