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Grade: 11
`        A ball falls freely from a height 1 m on the ground and rebounces to a height of0.8 .find the coefficient of restitution`
2 years ago

## Answers : (1)

Pranav Jayant Chiddarwar
28 Points
```							velocity of approach = root(2gh) = root(2*10*1) =  root(20)velocity of seperation =root(2gh)b = root(2*10*0.8) = root(16)e = velocity of approach/velocity of seperatione =  root(20)/root(16) = [root(5)]/2 = 1.1
```
2 years ago
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