*Originally posted by PinkFloyd*

**So I'm looking thru my old college chem book tonight and I run across one of the first formulas we had to learn: f = m1 * m2/d squared (I can't make it as pretty as the book due to being being typographically challenged regarding exponents). But Suppose an 8 pound bowling ball is 8 feet away from another 8 pound bowling ball. Wouldn't that make {f}, th ...[text shortened]... does {f} have to be to get an object with mass 1 to attract an object with mass 2 towards it?**

Converting to Kg, 8 pounds is 3.6 kg, and 8 feet is about 2.4 meters. Grav constant is 6.67E-11 and plugging that into your numbers, gives in grams, 1.47 E-12 grams.

about 1.5 Picograms. Not exactly an overwhelming force๐

When you convert the units to Kg and meters, the answer comes out in newtons, which, in this case 1.5E-10 newtons. One newton in terms of acceleration force is the force needed to accelerate one Kilogram one meter per second squared. So using that as a force number, tell me how long it would take for the two balls to touch if carefully placed in space your 8 feet apart, way away from the sun and the only force acting on the balls is the mutual gravitation. So after the balls are placed 8 feet apart, how long does it take to go that 8 feet?

How far would they travel if that acceleration continued, assuming the balls had that accel and didn't crash into one another, how far would they be apart after say, one year? Ten years? How fast would they be going ten years later assuming they accelerated at that same rate for ten years?

How far apart would they be ten years later?