answersLogoWhite

0

Escape velocity is calculated with the formula sqrt((2GM)/R) where G is the gravitational constant (6.67310^-11), M is the mass of the object you are escaping from (5.972210^24kg for Earth), and R is the radius of the object you are escaping from (about 6360km or 6.36*10^6 m).

Inputting those values in we get 2GM = 26.67310^-115.972210^24 = 7.97049812*10^14

Dividing that by R we get 125,322,297.5 or 1.25322297*10^8

The square root of that number is 11194.74419 m/s or 1.119474419*10^4 m/s

So you would need to be launched at a speed of about 11km/s. However keep in mind that this is for an object not propelling itself, it's basically just being chucked from some sort of canon. And it doesn't take into account air friction and the like. But yeah roughly 11km/s.

User Avatar

Florent

Lvl 2
5y ago

What else can I help you with?

Continue Learning about Physics

What is the relationship between centripetal force and speed?

The centripetal force required to keep an object moving in a circular path increases as the speed of the object increases. This is because the force needed to counteract the tendency of the object to move in a straight line (due to inertia) is directly proportional to the square of the object's speed.


Why does the speed of an object increase as it gets closer to the object its orbiting?

As an object gets closer to the object it's orbiting, the gravitational pull between the two objects increases. This causes the object in orbit to accelerate, increasing its speed to balance the gravitational force and maintain its orbit.


What additional information does Hannah need in order to calculate the tangential speed of the orbiting object?

To calculate the tangential speed of an orbiting object, Hannah would need to know the distance from the object to the center of the orbit (radius) and the time taken for the object to complete one full orbit. With this information, she can use the formula for tangential speed, which is tangential speed = 2πr / T, where r is the radius and T is the time taken for one orbit.


An object launched from Earth must attain a speed of 7900 m per second to achieve a low orbit What happens if the object its maximum speed is less than 7900m per second?

If the object's maximum speed is less than 7900 m/s, it will not reach a low orbit and will fall back towards Earth due to gravity. To achieve a stable low orbit, an object needs to reach the necessary speed to counteract the gravitational pull and continuously fall towards Earth.


What is the minimum speed for a projectile to go in orbit?

The minimum speed for a projectile to achieve orbit around the Earth, known as orbital velocity, is approximately 17,500 miles per hour (28,000 kilometers per hour) when launched from the Earth's surface. This speed allows the projectile to balance the pull of gravity with the force of its forward motion, resulting in a stable orbit.

Related Questions

What is the minimum speed needed to pull an object attached to a rope over a water surface so that it does not sink?

60000 60000


What is Orbital Speed?

Orbital speed is the velocity required for an object to stay in a stable orbit around another body, like a planet or a star. It is determined by balancing the gravitational force pulling the object towards the center with the object's inertia carrying it forward. The speed needed for orbit depends on the mass of the central body and the object's distance from it.


What is the relationship between centripetal force and speed?

The centripetal force required to keep an object moving in a circular path increases as the speed of the object increases. This is because the force needed to counteract the tendency of the object to move in a straight line (due to inertia) is directly proportional to the square of the object's speed.


Why does the speed of an object increase as it gets closer to the object its orbiting?

As an object gets closer to the object it's orbiting, the gravitational pull between the two objects increases. This causes the object in orbit to accelerate, increasing its speed to balance the gravitational force and maintain its orbit.


What additional information does Hannah need in order to calculate the tangential speed of the orbiting object?

To calculate the tangential speed of an orbiting object, Hannah would need to know the distance from the object to the center of the orbit (radius) and the time taken for the object to complete one full orbit. With this information, she can use the formula for tangential speed, which is tangential speed = 2πr / T, where r is the radius and T is the time taken for one orbit.


What are some examples of real life hyperbola?

The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.The orbit of objects that approach the Sun, or Earth, from far away, above a certain critical speed.At a certain critical speed, the orbit will be a parabola. Above the critical speed, the orbit will be a hyperbola. (In both cases, the object will go away, never to come back.) Below the critical speed, the orbit is an elipse or a circle.


What happens when an object in orbit looses speed?

If loss of speed does not throw the object's trajectory out of orbit, then the object will descend into a lower orbit, in accordance with the formula r=v2/a, where r is the radius of the orbit, v is the orbital velocity, and a is the acceleration due to gravity (9.8 m/s2). If there is atmosphere, even very thin atmosphere (as there is for the International Space Station), then as the object descends to a lower orbit, the atmospheric drag will cause the body to slow down even more, which causes the body to descend to a lower orbit, where the atmosphere is thicker, and thus the drag is stronger, and a vicious circle will eventually cause the body to spiral into the surface below.


An object launched from Earth must attain a speed of 7900 m per second to achieve a low orbit What happens if the object its maximum speed is less than 7900m per second?

If the object's maximum speed is less than 7900 m/s, it will not reach a low orbit and will fall back towards Earth due to gravity. To achieve a stable low orbit, an object needs to reach the necessary speed to counteract the gravitational pull and continuously fall towards Earth.


What is the minimum speed for a projectile to go in orbit?

The minimum speed for a projectile to achieve orbit around the Earth, known as orbital velocity, is approximately 17,500 miles per hour (28,000 kilometers per hour) when launched from the Earth's surface. This speed allows the projectile to balance the pull of gravity with the force of its forward motion, resulting in a stable orbit.


Why are the planets going in different speed?

The speed that an object travels in its orbit depends on its distance from the sun. That's how gravity works.


What are the to quantities needed in describing the speed of an moving object?

The two quantities needed to describe the speed of a moving object are distance traveled and time taken to cover that distance. Speed is calculated by dividing the distance by the time.


What measurements are needed to be done to determine the speed of an object?

To determine the speed of an object, you need to measure the distance the object travels and the time it takes to travel that distance. By dividing the distance by the time, you can calculate the speed of the object.