- #1
Max CR
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Homework Statement
The gravitational attraction between a 20 kg cannonball and a marble separated center to center by 30 cm is 1.48 x 10^-10 N. Compute the mass of the marble.
Homework Equations
The Attempt at a Solution
Mc = 20 kg
L = 30 cm = 0.3 m.
Fg = 1.48 x 10^-10 N
Mm = ?
Fg = G x mM/r^2
1.48 x 10^-10 N = 9.8 m/s^2 x 20 kg x m/0.3 m^2=
1.48 x 10^-10 N/2177.78 = 2177.78 m/2177.78 =
6.796 x 10^-14 kg