How fast can a rocket fly to win gravity and escape the Earth?

Gravity, also known as gravity, helps things stick to the ground but at the same time it also causes "trouble" when we want to leave Earth into space.But humans still get artificial satellites and spacecraft into space, flying around the Earth.How did scientists do it?

To overcome gravity, artificial satellites must move at a speed of 7.9 km / sec and must follow the direction of throwing out of the water. This speed is called "space speed 1", when it will fall freely around the Earth. As the International Space Station ISS, moving in space at a speed of about 28,000 km / h is about 15.79 rounds of Earth every day.

But if you want to leave Earth, the satellite needs to move faster, reaching speeds of 11.2 km / sec. This velocity is called the universe speed 2 or escape velocity.

If you want to fly to other planets, the satellite needs to reach 16.7 km / sec. This speed is "3 speed universe ".

To reach that speed, the missiles need a lot of fuel. That's why early rockets, like the Saturn V in the Apollo Moon exploration program, had to be big enough to carry so much fuel.

Other planets in the Solar System have different gravity intensities, so they also have different escape velocities.

For example, on Jupiter, the planet has twice the mass of all other planets combined, the rocket must reach an incredible speed of nearly 220,000 km / h to escape it and fly into space without being pulled back. come back.

The video below will tell us the escape velocity on each planet in the Solar System:

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