Questions tagged [escape-velocity]

The velocity an object must travel to successfully exit the gravitational influence of a body.

204 questions
7
votes
3 answers

When did Voyager-1 achieve Solar System escape velocity?

Wikipedia's page on escape velocity puts the escape velocity for an object travelling out of the Solar System at ~525km/s. This figure is slightly higher than the tentative velocity of Voyager-1 at ~17km/s. Why is the vehicle spoken of as being on…
Everyone
  • 4,703
1
vote
1 answer

Escape velocity given at an angle

We know that the escape velocity of Earth is about 11.2Km/s but what if we give that same velocity to an object at any angle let's just take 30° will it still escape from Earth's gravitational field or not
1
vote
1 answer

Zero gravity area

How can I find the radius of the circle (average) centered at the center of the earth where the gravitational force of the earth cancels the gravitational force of the other celestial bodies? Will the velocity which is required to reach the…
N.S.JOHN
  • 342
0
votes
1 answer

Escape velocity and Conservation of energy

If a physical body leaves earth with 11.2 km/s escape velocity with a certain amount of Mechanical energy, then how can it be said that the body will have 0 Mechanical energy at a point at infinity without following the Conservation of energy?
-1
votes
1 answer

doppler shift and escape velocity

Consider a radiation emitted by star at rest and reach then earth and the earth moves away .If we assume that the photon has a particle character . Since the star is at rest and and earth is revolving and relative to source. And the doppler shift…
Hash
  • 598
-3
votes
1 answer

At what temperature will the hydrogen molecules escape from earth's surface?

At what temperature will the hydrogen molecules escape from the earth's surface?