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`        Hello ….…  A body of mass m moving with a constant velocity v hits another body of the same mass at rest and sticks to it. The velocity of the compound body after collision is:`
3 years ago

## Answers : (1)

Piyush Kumar Behera
433 Points
```							See in this case we have to conserve the total mechanical energy...initial momentum=mv+m(0)=mvafter the collision occurs the total mass of the system is 2mso final momentum is 2mv’ ,where v’ is the final velocity.so conserving the mechanical energy 2mv’=mv=>v’=v/2please upvote this solution to encourage me,so that i can answer you rest questions
```
3 years ago
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