Question

what is escape velocity
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Answer 1

In physics, escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body. It is slower the farther away from the body an object is, and slower for less massive bodies.

Answer 2

Answer:

Escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body.

Escape velocity is only required to send a ballistic object on a trajectory that will allow the object to escape the gravity well of the mass M.

The escape velocity from Earth is about 11.2 km/s.

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