Universal Law of Gravitation Video Lessons

Concept

# Problem: According to the universal law of gravitation, if you double the masses of both attracting objects, then the gravitational force between them will A) not change at all.B) increase by a factor of 2. C) decrease by a factor of 2.D) increase by a factor of 4. E) decrease by a factor of 4.

###### FREE Expert Solution

Gravitational force:

$\overline{){\mathbf{F}}{\mathbf{=}}\frac{\mathbf{G}{\mathbf{M}}_{\mathbf{1}}{\mathbf{M}}_{\mathbf{2}}}{{\mathbf{R}}^{\mathbf{2}}}}$

If we double both masses then, 2M1 × 2M2 = 4M1M2

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###### Problem Details

According to the universal law of gravitation, if you double the masses of both attracting objects, then the gravitational force between them will

A) not change at all.

B) increase by a factor of 2.

C) decrease by a factor of 2.

D) increase by a factor of 4.

E) decrease by a factor of 4.