what is escape velocity
Answers
Answer:
In celestial mechanics, escape velocity or escape speed is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a primary body, thus reaching an infinite distance from it. It is typically stated as an ideal speed, ignoring atmospheric friction.
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Answer:
The minimum velocity required for a body to escape from the gravity of the earth is called escape velocity.
Explanation:
All objects on the surface of the earth are attracted towards its center. The force with which the earth attracts the objects towards its center is called the force of gravity of the earth. For an object to leave from the gravitational force of the earth, it should require a minimum value of velocity that helps it to overcome the gravitational force of the earth. This minimum value of velocity is called the escape velocity of the earth.\
The value of escape velocity will be different for different planetary bodies. Escape velocity on the surface of the earth is 11.2 Km/s. If an object cannot attain this value of minimum velocity, then it will return to the earth itself