Susie (45kg) and Troy (65 kg) are sitting 2 meters apart. They smile at each other. What is the gravitational force between them

Question

3 years ago

6

? a 4.9x10^8 N b 9.8x10^-8 N c 9.8X10^8 N d 4.9x10^-8 N

1 answer:

xxTIMURxx [149] · Answer 1 · 2022-05-21T00:37:34+03:00

The gravitational force between Susie and Troy is d) $4.9 \cdot 10^{-8}N$

Explanation:

The magnitude of the gravitational force between two objects is given by

$F=G\frac{m_1 m_2}{r^2}$

where :

$G=6.67\cdot 10^{-11} m^3 kg^{-1}s^{-2}$ is the gravitational constant

m1, m2 are the masses of the two objects

r is the distance between them

In this problem:

$m_1 = 45 kg$ is Susie mass

$m_2 = 65 kg$ is Troy mass

r = 2 m is the distance between them

Substituting into the equation, we find the gravitational force between Susie and Troy:

$F=(6.67\cdot 10^{-11})\frac{(45)(65)}{(2)^2}=4.9\cdot 10^{-8}N$

Learn more about gravitational force:

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