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```
A body starts moving with velocity 10 m/s. It ex experience a retardation equal to 0.2v^2. Its velocity after 2s is
A body starts moving with velocity 10 m/s. It ex experience a retardation equal to 0.2v^2. Its velocity after 2s is

```
2 years ago

Susmita
425 Points
```							Retardationf=-0.2v2or,dv/dt=-0.2v2or,dv/v2=-0.2dtIntegrate for dv from 10 to v and dt from 0 to 2.(1/v)-(1/10)=0.2×2=0.4Or,1/v=0.4+0.1=0.5Or,v=2 m/sHope this helps.
```
2 years ago
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• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions