Chapter 16, Problem 14Q

To determine

Why we are not normally aware of gravitational force and electric force between two ordinary objects.

Answer to Problem 14Q

Solution:

We are not normally aware of gravitational force and electric force between two ordinary objects because ordinary objects are less massive and neutral.

Explanation of Solution

We are not normally aware of gravitational force and electric force between two ordinary objects. For gravitational force the force is very week due to the small values of masses of ordinary objects and the small value of the gravitational constant. We are aware of gravitational forces between objects if at least one of them is massive as in the case of Earth and Satellite or Earth and an ordinary object on earth.

The electric force between ordinary objects is almost zero since they are normally neutral. We are aware of electric forces between ordinary objects when they charged. For example, the static electricity observed when cloths stick together after being run through the dryer.