## Two masses m1 and m2 exert a gravitational force of 12 N onto each other when they are 6 m apart. What will the gravitational force be if th

Question

Two masses m1 and m2 exert a gravitational force of 12 N onto each other when they are 6 m apart. What will the gravitational force be if the masses are moved closer to be 3 m apart?

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7 months 2021-07-15T22:35:29+00:00 2 Answers 8 views 0

## Answers ( )

1. gravitational, weak nuclear, electromagnetism, strong nuclear

2. FG/FE= Gm1m2/kq1q2

3. the ratio remains constant

4. 2.390×10^-43

5. 2.266×10^-19C

Explanation:

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F = 48 N

Explanation:

The gravitational force between two object is given by Newton’s Gravitational Law as:

F = Gm₁m₂/r²

where,

F = Gravitational Force = 12 N

G = Universal Gravitational Constant

m₁ = mass of first object

m₂ = mass of second object

r = distance between them = 6 m

Therefore,

12 N = Gm₁m₂/(6 m)²

Gm₁m₂ = 432 Nm²   —————- equation 1

Now, for r = 3 m:

F = Gm₁m₂/(3 m)²

using equation 1:

F = (432 Nm²)/(9 m²)

F = 48 N