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`        A rocket is launched with velocity 10 km/s. If the radius of earth is R, then maximum height attained by it will be (a) 2R        (b)3R     (ć)4R    (d) 5R`
one year ago

Sai
11 Points
```							KE of body=PE of body1/2mv^2=mg(R+H)Where H is maximum heightV^2=2g(R+H)(10*5000/8)^2=20(R+H)SINCE R=6.4*10^65R=R+HH=4RSOLVING WE GET
```
one year 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