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A page on inverse square law
- Thread starter FanofRPGs
- Start date
- 40,446
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Given that I don't even know how to do it, I agree.
- 6,894
- 1,979
Will read when I get a chance.
- 3,363
- 501
- Thread starter
- #7
- 165,200
- 72,171
Never mind. I added a link to your Inverse Square Law information page to the front page and the wiki navigation bar.
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Example 1: Finding mass from a size change
A character can lift a sphere that weighs 3000 kilograms. This sphere is half a meter in radius. Now, this sphere is 10 meters in diameter, and he lifts it. How much does he lift?
First we find the area of the two spheres. The area of the sphere originally was 3.14159 square meters, and the upsized sphere is 1256.64 square meters. Then we apply the formula ''new area of the object/original area of the object x the initial mass of the object'' 1256.64 square meters/3.14159 square meters * 3000 kilograms Plugging it in, the person lifted a 1,200,003.82 kilogram sphere, which is Class M
So the original sphere is 1 meter in diameter, and the new sphere is ten times bigger. That means the original sphere had a surface area of 12.56m, not pi. That would've been true if we were using the area of a circle though. So the mass should be 300,000kg.
Though is the inverse square law appropriate for things like mass? All you're really doing is multiplying the mass by the difference of the size.
A character can lift a sphere that weighs 3000 kilograms. This sphere is half a meter in radius. Now, this sphere is 10 meters in diameter, and he lifts it. How much does he lift?
First we find the area of the two spheres. The area of the sphere originally was 3.14159 square meters, and the upsized sphere is 1256.64 square meters. Then we apply the formula ''new area of the object/original area of the object x the initial mass of the object'' 1256.64 square meters/3.14159 square meters * 3000 kilograms Plugging it in, the person lifted a 1,200,003.82 kilogram sphere, which is Class M
So the original sphere is 1 meter in diameter, and the new sphere is ten times bigger. That means the original sphere had a surface area of 12.56m, not pi. That would've been true if we were using the area of a circle though. So the mass should be 300,000kg.
Though is the inverse square law appropriate for things like mass? All you're really doing is multiplying the mass by the difference of the size.
