Chapter 3, Problem 40R

To determine

The correct statement about an object in free fall among the given statements.

Answer to Problem 40R

When an object in free fall, it pulls on earth and earth pulls on it and the correct option is option (C).

Explanation of Solution

Introduction:

The expression to determine the weight of an object is,

  $F=mg$

Here,

• $m$ is the mass of object.
• $g$ is gravitational strength.

An object under the condition of free fall exert a force of $mg$ on the earth and earth also exerts a reaction of same magnitude on the object. Therefore, the object pulls on earth and earth pulls on object.

Conclusion:

Therefore, when an object is in free fall, it pulls on earth and earth pulls on it.