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`        derive an expression for escape and orbital velocity `
one year ago

Arun
23340 Points
```							Dear student mv^2/r = GMm/r^2Centripetal force = gravitational forceOrbital velocity, for a small mass m orbiting a large mass M:v = sqrt (GM /r)Escape velocity: Potential energy relative to infinity = -GMm/r. Escape velocity is the velocity such that the initial KE is just enough to get you to infinity due to conservation of energy So(1/2)mv^2 = GMm/r. v = sqrt (2GM/r)  RegardsArun (askIITians forum expert)
```
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