Question

Problem 15

Answer 1

Given information

When one stand still on the ground, the ground exerts a force on one. This force does not lift one up in the air.

Step-by-step explanation

Step 1.

According to Newton's third law, for every action, there is an equal and opposite reaction. We exert a force on the ground when we stand on the ground is our weight and the ground exert the same magnitude of force in opposite direction.

The force exerted by the ground on us is:

, where m is your mass, g is acceleration due to gravity.