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Does escape velocity depend upon height from which it is projected?
Yes, it would. That's one reason why some artificial satellites were tossed into orbit after being carried up aboard the space shuttle. The reason is because escape velocity from Earth depends on Earth's gravity, which in turn depends on the distance from the Earth's center. The higher you go, the farther you are from the center of the planet, the less gravitational force there is between you and the Earth, and the smaller the escape velocity thus becomes.
What is the escape velocity of mercury?
The escape velocity of Mercury is about 4.3 km/s, which is the speed an object must reach to break free from Mercury's gravitational pull and move into space.
What speed do rockets break earths gravitational pull?
Enough to support their own weight, plus a little more for motion. It is possible, in theory, to imagine a rocket moving away from the Earth at a slow walking pace. In real life you don't do that, you get away from Earth's pull as quickly as you can manage to do so.
What would the escape velocity be for a planet with twice the mass of Earth and twice the diameter if the Earth's escape velocity is 11 km per s?
Escape velocity is determined by the formula ( v = \sqrt{\frac{2GM}{R}} ), where ( G ) is the gravitational constant, ( M ) is the mass of the planet, and ( R ) is its radius. For a planet with twice the mass of Earth and twice the diameter, its radius would also be twice that of Earth. Thus, the escape velocity would be ( v = \sqrt{\frac{2G(2M)}{2R}} = \sqrt{\frac{2GM}{R}} = 11 , \text{km/s} ). Therefore, the escape velocity for this planet would remain 11 km/s.
Why you must study escape velocity?
You don't. "Escape velocity" is a meaningless number. "Escape velocity" is the speed at which a CANNON SHELL must be fired in order to escape from the Earth's gravity well. With a powered rocket, you can "escape" from the Earth's gravity at ANY speed - as long as you have enough fuel.
You say that the escape velocity is the one required to escape the earth's gravitational speed then we say the satellites stay in orbits because of the earth's gravitational speed how does that ha?
Satellites are traveling at less than escape velocity. (roughly, orbital velocity is about 7 tenths of escape).
What is anEscape Velocity?
Velocity sufficient for a body to escape from a gravitational attraction without acceleration. Earth has an escape velocity of 11.19 kmsec-1 .
What is the excape velocity on earth?
The escape velocity on Earth is approximately 11.2 kilometers per second (33 times the speed of sound). This is the speed required for an object to break free from Earth's gravitational pull and escape into space.
The escape velocity from Earth is greater for larger rockets than for small ones?
Escape velocity from Earth depends only on the mass of the Earth and the distance from its center, not the mass or size of the rocket. All rockets need to reach the same escape velocity to leave Earth's gravitational pull, regardless of their size.
A rocket that moves upward from earth's surface at escape velocity will?
Escape the earth's gravitational pull and continue out into space. However, a rocket does not need to be launched at the escape velocity as it can continue to accelerate as it climbs. A gun projectile would need to be fired with the escape velocity. In a perfect system with only the projectile and the Earth: If the projectile is fired with the exact escape velocity it will travel to infinity away from the Earth. Upon reaching infinitely far away from Earth the projectile would have zero velocity. All of its kinetic energy (movement) would be transferred to potential energy.
What does the term 'escape velocity' mean?
Escape velocity is the minimum velocity needed for an object to break free from the gravitational pull of a celestial body, such as a planet or moon. It allows an object to overcome gravity and travel into space without being pulled back. The specific escape velocity depends on the mass and radius of the celestial body.
The speed and direction a rocket must have to break away from a planet's gravitational pull?
The speed is called the escape velocity. An object travelling at the Earth's escape velocity will never return to Earth because as it moves away, and decelerates under the Earth's gravity, the force pulling it back (its weight) is also reducing and if it is above the escape velocity it will escape altogether.
Ignoring air resistance what is the minimum initial speed a projectile must have at the Earths surface if the projectile is to escape the Earths gravitational pull?
The minimum initial speed for a projectile to escape Earth's gravitational pull (escape velocity) is about 11.2 km/s. This speed is independent of the mass of the projectile and is based on the balance between the projectile's kinetic energy and gravitational potential energy. Any speed greater than the escape velocity will allow the projectile to escape Earth's gravitational pull.
What may happen to a rocket which rises from the earth never attains escape velocity?
A rocket that doesn't reach "escape velocity" will be overcome by gravity and will be pulled back down to Earth. Also, rockets which go into orbit have not reached escape velocity. Escape velocity is what is needed to completely leave earth's gravity well.
Does escape velocity depend upon height from which it is projected?
Yes, it would. That's one reason why some artificial satellites were tossed into orbit after being carried up aboard the space shuttle. The reason is because escape velocity from Earth depends on Earth's gravity, which in turn depends on the distance from the Earth's center. The higher you go, the farther you are from the center of the planet, the less gravitational force there is between you and the Earth, and the smaller the escape velocity thus becomes.
How fast must an object go to escape earth's gravittional pull?
An object must reach a velocity of about 25,000 miles per hour (40,000 kilometers per hour) to escape Earth's gravitational pull and enter into orbit around the sun. This speed is known as Earth's escape velocity.
If a body falls freely from infinity then it will be striking the earth with what velocity?
The body will be striking the Earth with a velocity equal to its escape velocity, which is around 11.2 km/s. At this velocity, the body will have enough kinetic energy to overcome the gravitational pull of the Earth and reach the surface.
