Gravitation

Question: The least velocity required to throw a body away from the surface of a planet so that it may not return is (radius of the planet is $6.4 \times {10^6}m,\,\,g = 9.8\,m/se{c^2})$

1) $9.8 \times {10^{ - 3}}m/sec$

2) $12.8 \times {10^3}m/sec$

3) $9.8 \times {10^3}m/sec$

4) $11.2 \times {10^3}m/sec$

Solution:

Explanation: No Explanation

Gravitation Potential Gravitational Potential Energy and Escape Velocity

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