Question

When a force of 15 newtons is applied to a stationary chair, it starts moving. What can you say about the frictional force between the chair and the floor of the room? A. The force of kinetic friction between the chair and the floor is greater than the force of static friction. B. The force of static friction between the chair and the floor is equal to the force of kinetic friction. C. The normal force acting on the chair is equal to 15 newtons in the upward direction. D. The force of static friction between the chair and the floor is less than 15 newtons.

Answer 1

The force of static friction between the chair and the floor is less than 15 newtons.

Step-by-step explanation:

In this scenario, when a force of 15 newtons is applied to a stationary chair and it starts moving, it indicates that the force of static friction between the chair and the floor is less than 15 newtons. Static friction is the force that must be overcome to set an object in motion.

The force of kinetic friction between the chair and the floor would come into play once the chair is in motion, and it is generally less than the force of static friction.

Therefore, the correct answer is D. The force of static friction between the chair and the floor is less than 15 newtons.