The escape velocity of a body from the earth's
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To escape the gravitational field of the Earth, the minimum velocity a body should possess is called escape velocity.
On the surface of the Earth, the value of escape velocity is .
Step 1:
To calculate escape velocity on the Earth's surface:
When a body is thrown upwards, the law of conservation of energy takes place.
Loss in kinetic energy Gain in gravitational potential energy
Step 2:
If the body has a mass and is thrown upwards with a velocity .
where is the Earth's mass, is the Earth's radius, and is the gravitational constant.
So, on the Earth's surface escape velocity is .
Explanation:
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