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The mass of an object is the same wherever it may be. The weight of an object changes however. The weight of an object is the product of its mass times gravity. Gravity is greater on earth than it is on the moon, so an object will weigh more on earth.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoEscape velocity from Earth's surface = 11.2 km/s
Escape velocity from Moon's surface = 2.38 km/s
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What is takeoff velocity of rocket?
Exactly the same way it takes off from the earth. Gravity on the moon is so relativistically low that the propulsion required to reach an escape velocity is very very low compared to the earth.
What will happen if a satellite has velocity which is more than orbital vellocity but less than escape velocity?
If a satellite somehow acquires too much velocity for the orbit it's in, it moves to an orbit for which that velocity is just right. That's how artificial satellites are placed into the desired orbit ... engines are fired to give them the velocity that's correct for the desired orbit, and that's where they go.
How can rockets escape from gravity?
Escape velocity is defined to be the minimum velocity an object must have in order to escape the gravitational field of the earth, that is, escape the earth without ever falling back. From the surface of the Earth, escape velocity (ignoring air friction) is about 7 miles per second, (11.2 km/sec) or about 25,000 miles per hour. Given that initial speed, an object needs no additional force applied to completely escape Earth's gravity. More can be seen about this in the related link below.
Will an object dropped on the moon reach a terminal velocity?
That varies, depending on the object. A massive object may take a long time to reach terminal velocity; a less massive object will reach terminal velocity faster. It basically depends on the object's mass, size, and shape.
What is your terminal velocity on the moon?
'Terminal velocity' is completely a phenomenon of falling through air or water. Since there's none of either on the moon, there's no terminal velocity there. If you can start high enough, you can reach as high a velocity as you want to before you hit the surface with a silent 'splut'. ==================================== The same contributor confessed: Well, no, I guess that's not completely true. There's the concept of 'escape velocity'. On the moon, that's 2.38 kilometers per second ... the velocity required at launch from the moon to escape its gravity and not fall back. The way these things work, that's also how fast you'd be going when you hit the surface if you were dropped from infinity and fell all the way to the moon. So your velocity when you hit the surface is: Whatever velocity you were thrown down with, plus some gain due to the acceleration of gravity on the way down ... which is a maximum of 2.38 more kilometers per second if you were thrown at the moon from infinitely far away.
Can an intercontinental ballistic missile reach escape velocity?
Yes. Probes have already be sent to the Moon, and other planets; this requires a velocity very near the escape velocity from Earth. Other probes are leaving the Solar System, so they achieved the much higher escape velocity required to escape the attraction from the Sun.
There is no atmosphere on the moon. Explain on the basis of escape velocity?
the escape velocity of moon is less than that of earth...so the gas easily escape out and hence moon has no atmosphere..
What is the escape velocity from the moon for a lunar landing module sitting on the Moon's surface?
The lunar escape velocity, regardless of what object is trying to escape, is about 2.38 km/s, or about 1.5 mi/s. (This is about 5324 mph, compared to about 25,000 mph on Earth.)
Have any MANNED vehicles reached 'escape velocity' - If so what were they?
Yes, several manned vehicles have reached escape velocity, which is about 25,000 miles per hour. The Apollo spacecraft used during the moon missions reached escape velocity en route to the moon. Also, the Space Shuttle reached escape velocity when it orbited the Earth or traveled to the International Space Station.
The ratio of the radius of that of the moon is 10 .The ratio of g on the earth and on the moon is 6 then what is the ratio of the escape velocity from earth's surface to that from the moon's surface?
The escape velocity is given by √2gR Hence it's value Ve on the earth and Vm on the moon is Ve = √2ge.Re Vm = √2gm.Rm Therefore , their ratio = Ve/Vm = √ge.Re/√gm.Rm = √6 x 10 = √60 = 8 nearly
What is te Formula of escape velocity?
Escape velocity is given by. √2gR or √2GM/R .therefore escape velocity is directly prop. to gravity of a planet or star or any other body. More is the gravity more is the escape velocity. The escape velocity of our earth is 11.2 km/s and that of moon is 2.31 km/s
Would a spacecraft need as much fuel to escape from the moons gravity as it would to escape from the earths?
Escape velocity for the moon is a little over 5000 miles per hour. For the earth it is about 25,000 miles per hour. So the moon requires a fifth of the energy required to escape the earth.
Which requires more fuel -- a rocket going from the Earth to the Moon or a rocket coming from the Moon to Earth?
the moon because it has only one sixth of the gravitational pull that Earth does
What is them minimum initial speed for escape?
If you mean to escape into space, that is called the "escape velocity". How much this is depends on whether you are talking about planet Earth, the Moon, the Sun, Jupiter, Sirius B, etc.
What is takeoff velocity of rocket?
Exactly the same way it takes off from the earth. Gravity on the moon is so relativistically low that the propulsion required to reach an escape velocity is very very low compared to the earth.
Can you help with this question The space rocket only needed to go 1.4 kilometres per second to escape the Moon's gravitational pull on the way back Why is this less than taking off from Earth?
The rocket leaving Earth has to overcome the Earth's gravitational pull, which is much larger than the Moon's. The "escape velocity" for Earth is nearly 5 times that of the Moon's escape velocity, which is actually about 2.4 kilometers per second. Actually, the details of how spaceflight works are more complicated than that, but the basic idea is correct.
How is escape velocity obtained?
"Escape velocity" is a misnomer; there isn't any such thing. "Escape velocity" is the speed that it would take a projectile to escape completely from the Earth's gravity, IF IT WERE FIRED FROM THE SURFACE FROM A CANNON.The "escape velocity" from Earth is about 7 miles per second, or 25,000 miles per hour. But the Apollo spacecraft that went to the Moon didn't go anywhere near that speed. It didn't have to, because it was propelled by a rocket engine. With a big enough engine and enough fuel, you could "escape" from the Earth at 5 miles per hour, or less. It would be TERRIBLY wasteful of fuel, which is why we don't do it that way.
