a) on B from A?
b) on A from B?
2007-10-24 19:36:44 · 3 answers · asked by =P 6 in Science & Mathematics ➔ Physics
The gravitational attraction between two masses is
F = G*m1*m2/r^2
G = 6.67*10^-11 N*m^2/kg^2
F = 6.67*10^-11 * 7 * 10 / 1 = 4.67 * 10^-9 N
both a) and b) are the same
2007-10-24 19:50:06 · answer #1 · answered by gp4rts 7 · 0⤊ 0⤋
The gravitational forces will be equal [and opposite].
The size of the gravitational force is equal to m1m2/r^2*G, where m1,m2 are the masses, r is the distance, and G is Newton's Gravitational constant = 6.67*10^-11.
In this case that gives (70*6.67*10^(-11))/1 = 4.67*10^(-9) Newtons.
2007-10-24 19:46:53 · answer #2 · answered by David Zukertort Rudel 3 · 0⤊ 0⤋
It is same in both the cases = 4.67/1000,000,000 N i.e. 4.67 * 10^(-9).
Compare this with the gravitational force the earth exerts on these masses nearly equal to 70 N and 100 N respectively !
2007-10-24 20:16:23 · answer #3 · answered by Venkat R 6 · 0⤊ 0⤋