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

A bomb of mass `6kg` initially at rest explodes in to three identical fragments On of the fragments moves with a velocity of `10sqrt3 hatim//s` another frament moves with a velocity of `10 hatj m//s` then the thired fragment moves with velocity of magnitude .

A

`30m//s`

B

`20m//s`

C

`15m//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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Knowledge Check

  • 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
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    B
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    C
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    D
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