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a ball is dropped on the ground from a height 10cm .if coifficient of restitution is 0.4, then find the height to which ball is rebound ?
a ball is dropped on the ground from a height 10cm .if coifficient of restitution is 0.4, then find the height to which ball is rebound ?

```
4 years ago

Vikas TU
14149 Points
```							Final velocity would be,v = root( 0 + 2g*10/100) = > root(2) m/s.From coeff. of restitution,v’ = ev = > 0.4*vNow let h be the height it rebounced then,0^2 = (0.4v)^2 – 2ghh = 0.16v^2/2g = > 0.16v^2/20 = > 0.32/20 = > 0.016 meter.
```
4 years ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions