Gravity

[Steve F]

What would the level of gravity be on Jupiter? Would I weight more or less?

[Davidgrey]

Steve

It's been calculated that the mass of Jupiter is 318 times the mass of the earth.however, the gravity of Jupiter is only 254% of the gravity on Earth. The reason for this is that Newton's second law in essence states that the gravitational force a planet exerts upon an object at the planet's surface is proportional to its mass and to the inverse of its radius squared and Jupiter is a large planet.
Consequently, it's fair to conclude that should you decide to go for a stroll on the surface of Jupiter you would weigh 254% more than you do now... That in itself, unless you're a real salad dodger wouldn't be to bad, but what is likely to kill you is  the constituents of the atmosphere which are - 86% hydrogen, and 14% helium with trace amounts of methane, ammonia, phosphate, water, acetylene, ethane, germanium, and carbon monoxide. Sadly, before you got to take that fatal breath, you would have been crushed by the density of the atmosphere 

Cheers

David Grey

 

[bernardo]

Without looking it up, I seem to remember that the gravity on all the main planets is about the same as on Earth - except Mars which is c. 0.38g.  So Jupiter would be roughly 1g.

 

But I haven't checked yet so I might be corrected by someone else.

[bernardo]

It's 2.54g.  I put "Jupiter Gravity" into google and that was the second reference - so it wasn't hard to find out.