Answers

2014-10-29T17:35:57+05:30
The lowest velocity which a body must have in order to escape the gravitational attraction is known as Escape Velocity.

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2014-10-29T17:53:28+05:30
Escape velocity is the speed that an object needs to be traveling to break free of a planet or moon's gravity well and leave it without further propulsion. For example, a spacecraft leaving the surface of Earth needs to be going 7 miles per second, or nearly 25,000 miles per hour to leave without falling back to the surface or falling into orbit.
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