Question

A body is at rest on the surface of the earth. Which of the following statement(s) is/are correct?

• A. No force is acting on the body.
• B. Only weight of the body acts on it.
• C. Net downward force is equal to the net upward force.
• D. There is gravitational force acting on both the body and the earth.

Answer 1

Answer: (C), (D)

The correct options are
C Net downward force is equal to the net upward force.
D There is gravitational force acting on both the body and the earth.

A body on the earth's surface experiences a gravitational force in the downward direction. However, the surface of the earth exerts an equal contact force in the upward direction. Hence, the net downward force is equal to the net upward force. The body remains at rest because net force is zero.