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A car moving with speed v on a straight road can be stopped with in distance d on applying brakes. If same car is moving with speed 3v and brakes provide half retardation,then car will stop after travelling distance?

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5 years ago

Manish Kumar
11 Points
```							1st speed = vStopped in distance = d2nd speed =3vRetardation =1/2What is distance covered by car while braking or stopping?By puting 3rd law of motion i.e v^2 = u^2+2asSo a=v^2÷2da=1÷2(v^2÷2d)=v^2÷4dd=(3v)^2÷2d=9v^2÷2v^2÷4d=9×4d÷2= 18d
```
3 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