Quote:
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Originally Posted by papageno
Quote:
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Originally Posted by nutant gene
Now take a one "kilogram" mass from Jupiter, which is one-fifth the size of our previous mass, and take it to Earth's 1 G.
Place that 0.2 mass on a balance scale with Earth's one kilogram mass, and the Earthian kilogram wins hands down.
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Of course, because 1 kg > 0.2 kg.
But 0.2 kg is not Juptier's kg, it is 0.2 Jupiter's kg.
You are still confused about weight and mass.
Why don't you express the wieght in Newtons? |
I’ve avoided the “weight” discussion because it may confuse. Your weight on Jupiter will be the same as we now estimated, since your material mass had not changed when you got there.
So if you weigh on earth 100 kg (Earth scale), your weight on Earth (at 9.8 m/s^2) is 980 N. If G is 5 times greater on Jupiter, your Jupiter weight woud be five times Earth’s N (times 23 m/s^2), so you would weigh 23 * 4900 N, which now makes you in Newtons force = 112,700 N. However, that is incorrect. Your weight on Jupiter is the same as it was before we (hypothetically) discovered it had a different G, so the correct weight on Jupiter is only 100 kg * 23 m/s^2, so you would weigh 2300 N. So you see, it doesn’t work, which is why I avoided this analogy.
How would you calculate it to show your analogy better?