Question

Gravity is the weakest force.justify

Answer 1

Gravity is so weak at the atomic scale that scientists can typically ignore it without incurring significant errors in their calculations. Hwever, on astronomical scales, gravity does dominate over the other forces. There are two reasons for this: 1) gravity has a long range, and 2) there is no such thing as negative mass. Each force dies off as the two objects experiencing the force become more separated.