# Gravity Formula

Gravity also termed as gravitation, is a force that occurs among all material objects in the universe. For any two objects or units having non-zero mass, the force of gravity has a tendency to attract them toward each other. The Universal Law of Gravitation says that:

All mass applies an attractive force on all other mass.

If the distance between two masses m1 and m2 is d, then the gravity formula is articulated as:

$F=\frac{Gm_{1}m_{2}}{r^{2}}$

Where,

• G is a constant equal to 6.67 × 10-11 N-m2/kg2
• m1 is the mass of the body 1
• m2 is the mass of body 2
• r is the radius or distance between the two bodies

The gravitational force formula is very useful in computing gravity values, larger mass, larger radius, etc.

### Gravity Problems Solved Examples

Underneath are given some questions on gravity which helps one to comprehend the use of this formula.

Problem 1: Calculate the force due to gravitation being applied on two objects of mass 2 Kg and 5 Kg divided by the distance 5cm?

Given: Mass m1 = 2 Kg,
Mass m2 = 5 Kg,
$The\;force\;due\;to\;gravity\;are\;given\;by\;formula\;F=\frac{Gm_{1}m_{2}}{r^{2}}$
F =$\frac{6.67\times 10^{-11}\times 2\times 5}{(5\times 10^{-2})^{2}}$
$=2.668\times&space;10^{-7}N$