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There is no particular velocity required to leave orbit. The concept of "escape velocity" of a spacecraft is calculated as if the spacecraft were an artillery shell being fired out of some enormous cannon. In theory, you could leave the Earth at any velocity you chose, as long as you had sufficient fuel. ( I want to _live_ in Theory. Everything always works there, "In Theory". )
For example, a man in good physical condition can climb a ladder at 2 feet per second. If there were a tall enough ladder, you could leave the Earth behind at 2 feet per second - if you never got tired, or ran out of oxygen or fuel. In reality, we never have sufficient fuel and we have to expend it in the most efficient means possible, a calculation that takes our fuel, our mass and our destination all into account.
If you were being fired from a cannon, to escape the Earth's gravity and leave the Earth behind forever, you would need to have a muzzle velocity of about 25,000 miles per hour, or 7 miles per second.
What else can I help you with?
What is speed that a spacecraft must reach to orbit the Earth is what?
The speed that a spacecraft must reach to leave Earth forever is 25,000 miles per hour. This is called "escape velocity", and this is the initial velocity required to leave the Earth behind completely. However, the concept of "escape velocity" is fundamentally flawed, being based on the concept of a shell being fired from a giant cannon. A rocket with enough fuel may leave the Earth behind at any speed desired. The required velocity to attain orbit depends on the altitude of the orbit; curiously, lower orbits require more speed, while higher orbits require less speed - but more fuel to get there! At the altitude of the ISS, an object must be going at about 18,000 MPH to be in a circular orbit.
What is the circular orbit velocity formula and how is it used in physics?
The circular orbit velocity formula is v (GM/r), where v is the velocity, G is the gravitational constant, M is the mass of the central object, and r is the distance from the center. This formula is used in physics to calculate the velocity required for an object to stay in a circular orbit around a central mass, such as a planet or a star. It helps scientists understand the dynamics of celestial bodies and spacecraft in orbit.
The speed that must be reached by a satellite or spacecraft for it to go into orbit is called?
Escape velocity
Is orbital velocity the velocity a rocket must reach to fly off into space?
No.Orbital Velocity is the velocity required by a body to achieve a circular orbit around its primary.Escape velocity is the minimum velocity needed to escape a gravitational field
The velocity required to keed a satellite in orbit around the Earth is called?
circular velocity
How does a spacecraft enter into a planets orbit?
When spacecraft like the Hubble telescope enter a planet's orbit, it is lifted by a rocket. Once it enters the orbit, the rocket drops away and the spacecraft is projected through the planet's orbit.
What is the minimum delta v required to reach Earth orbit from a spacecraft launched from the surface of the planet?
The minimum delta v required to reach Earth orbit from a spacecraft launched from the surface of the planet is approximately 9.3 kilometers per second.
How fast does the Apollo 11 leave orbit?
Apollo 11 left Earth's orbit after achieving a velocity of approximately 25,000 miles per hour (40,000 kilometers per hour). This speed was necessary to break free from Earth's gravitational pull and enter a trajectory toward the Moon. The spacecraft executed a Trans-Lunar Injection burn to achieve this velocity after completing its initial Earth orbit.
Changing the orbit of a spacecraft by firing thrusters is an example of?
Orbital maneuvering. By firing thrusters, a spacecraft can change its velocity and alter its trajectory in space. This allows for adjustments in orbit, course corrections, and changes in position relative to celestial bodies or other spacecraft.
What must a spacecraft do to leave earth?
A spacecraft must achieve escape velocity (around 25,000 mph) to break free from Earth's gravitational pull. This involves overcoming gravity, air resistance, and atmospheric drag to enter into orbit and then further accelerate to break free from Earth's gravity well. Once it reaches escape velocity, the spacecraft can travel to other celestial bodies or into deep space.
What is the relationship between the velocity of a circular orbit and the gravitational force acting on an object in that orbit?
The velocity of a circular orbit is directly related to the gravitational force acting on an object in that orbit. As the velocity increases, the gravitational force required to keep the object in orbit also increases. This relationship is governed by Newton's law of universal gravitation.
The velocity a rocket must reach to establish an orbit around earth is called?
The velocity a rocket must reach to establish an orbit around the Earth is called orbital velocity. It is the speed required for an object to overcome gravitational pull and maintain a stable orbit around the planet. The orbital velocity depends on the altitude of the orbit and follows Kepler's laws of planetary motion.
