In gravitational force, if it is long range than why it is weakest force??????

Asked by manojcossb | 20th Oct, 2015, 07:28: PM

Expert Answer:

The strength of the force is not related to its range.
Gravitational force is given from Newton's law of gravitation as the force between two masses is directly proportional to the product of the two masses and inversely proportional to the square of the distance between them.
This statement clearly suggests that the strength of the force is inversely proportional to the square of the distance. Hence, larger the distance, smaller will be the strength.
So, infact we can say that due to its long range the strength is very small. Also, the proportionality constant G has a very small value. This also makes the gravitational force very week.
The other forces like nuclear force, electromagnetic force, etc. being applicable in short distances are very strong. Distance between the two particles is small for these forces, and hence, their strength is large. 

Answered by Romal Bhansali | 22nd Oct, 2015, 03:40: PM