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An object of mass 3m splits into three e...

An object of mass 3m splits into three equal fragments. Two fragments have velocities `vhatj` and `v hati`. The velocity of the third fragment is

A

`v(hatj-hati)`

B

`v(hati-hatj)`

C

`v(hati+hatj)`

D

`(v(hati+hatj))/(sqrt2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Applying law of conservation of momentum
`Mv_(3)= Mv ((hati+ hatj))/(sqrt(1^(2)+1^(2))) rArr v_(3)=v((hatji+hatj))/(sqrt(2))`
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DISHA PUBLICATION-LAWS OF MOTION-Exercise-1: Concept Builder (Topicwise) (Topic 2: Momentum, Law of Conservation of Momentum and Impulse)
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