Question

The gravitational force between two particles sapareted by distance r varies as ______ .
1) 1/r
2) r
3) r2
4)1/r2​

Answer 1

Gravitational force

Question:

The gravitational force between two particles separated by the distance r varies as ______ .

1) 1/r

2) r

3) r2

4)1/r2​

Explanation:

• Gravitational force is the forces exerted on us by the Earth.
• If two particles separated by a distance r, then the gravitational force is inversely proportional to the square of the distance between the particles.
• It is directly proportional to the product of the mass.
• The gravitational force varies inversely with the square of the distance between them.
• Let, the distance between the two particles is r.
• Then, the gravitational force ∝   $\frac{1}{r^{2} }$.

The gravitational force between two particles, separated by the distance r varies as  $\frac{1}{r^{2} }$.

So the option 4 is the correct answer.

$\frac{1}{r^{2} }$

Answer 2

Answer:

r^2 because in formula the distance b/w two particles is squared