so that you would be very light on the moon compared to the earth, and a a bit heavier on Mars but still not as heavy as on earth,etc..?
2007-12-05 20:49:06 · 6 answers · asked by me 1 in Science & Mathematics ➔ Astronomy & Space
On A planet 4 times as large as earth, would it be impossible for a man to walk on it...due to the intense gravity?
2007-12-05 20:50:29 · update #1
It's proportional to the mass of the object and the inverse square of the distance you are from it (on the surface just use the radius).
2007-12-05 21:05:38 · answer #1 · answered by bestonnet_00 7 · 0⤊ 0⤋
All object with mass have gravity, not just stellar bodies.
Gravity affects your weight on a planet, so you would be light on bodies with less mass than bodies with large masses.
If you were to be on a planet 4x larger in mass than that of earth, your weight can be assumed to be 4x of that on earth.
The maximum strength to weight ratio that humans can have is about 7, so therefore it is possible that a human can walk on a planet with greater gravity
2007-12-05 20:59:40 · answer #2 · answered by denarea3 2 · 0⤊ 1⤋
As far as we can tell based upon the motion of the planets, yes.
However, you must realize SIZE and MASS are not the same. A planet made up of nothing but gases could be bigger than earth but with less mass, gravity on it would be less.
2007-12-06 11:55:47 · answer #3 · answered by forgivebutdonotforget911 6 · 0⤊ 0⤋
the gravity of mars is lighter then on earth, but comparable.
yes, most large planets have much more gravity then we can stand, to the point where even are robots are crushing themselves under our own weight. but a planet 4 times bigger isnt simply 4 times more gravity, but its a good guess.
oh, did you know that two giant sumo wrestlers standing next to eachother pull at eachother with the weight of a tissue paper?
gravity affects everything.
2007-12-05 21:08:18 · answer #4 · answered by wolffromthenothing 2 · 0⤊ 0⤋
the greater the mass, the greater the gravity, yes. but not the SIZE. for instance, a planet can be very BIG (volume) but not as dense (mass/volume) so there can be a smaller planet that is more dense than a larger planet, which would result in more gravity on the smaller planet.
2007-12-05 20:53:54 · answer #5 · answered by John 6 · 0⤊ 0⤋
it isnt always like that. Jupiter has abt 22X Earths gravity but even though neptune is bigger... it has lesser gravity compared to the earth.
2007-12-05 20:54:57 · answer #6 · answered by *~Sapphire~* 6 · 0⤊ 0⤋