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Question
A bomb at rest explodes into 3 parts of the same mass. The momentum of the two parts is `-3"P"hat"i"` and `2"P"hat"J"` respectively. The magnitude of the momentum of the third part is ______.
Options
P
5 P
11 P
`sqrt13` P
MCQ
Fill in the Blanks
Solution
A bomb at rest explodes into 3 parts of the same mass. The momentum of the two parts is `-3"P"hat"i"` and `2"P"hat"J"` respectively. The magnitude of the momentum of the third part is `underlinebb(sqrt13 "P")`.
Explanation:
Magnitude of momentum of the 3rd part.
`sqrt(9"P"^2+4"P"^2)` = `sqrt13` P
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