Gravitation

Question: The escape velocity of a body on the surface of the earth is 11.2 km/s. If the earth's mass increases to twice its present value and the radius of the earth becomes half, the escape velocity would become

1) 5.6 km/s

2) 11.2 km/s (remain unchanged)

3) 22.4 km/s

4) 44.8 km/s

Solution:

Explanation: No Explanation

Gravitation Potential Gravitational Potential Energy and Escape Velocity

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