(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The gravitational attraction between a 20 kg cannonball and a marble seperated center to center by 30 cm is 1.48 x 10^-10 N. Compute the mass of the marble.

2. Relevant equations

3. 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

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# Homework Help: Compute the mass of the marble?

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