The Force That The Floor Exerts On You Is

The external force is the wire that pulls the elevator.

The force that the floor exerts on you is.

Newton s third law states that every action has an equal and oposite reaction you may not think this but when you re standing ont he floor you are excerting a force against the floor. Your weight caused by gravity is pulling you down the floor is reacting by pushing back. And it goes same for the fourth case. We call this force the reaction force.

In the vertical direction the net force is zero since the velocity component in that direction must remain zero. Similarly a car accelerates because the ground pushes forward on the drive wheels in reaction to the drive wheels pushing backward on the ground. Therefore the baby does not plummet down the earth. Newton s first law states that if all the forces cancel each other out.

Equals your change in momentum the floor has to exert the same impulse on you no matter how you land. Fn 150 24 9 174 9. But since impulse equals force times time you can decrease the force that the floor exerts on you by increasing the stopping. True when you jump you accelerate upward because the floor exerts an upward force on you.

It can t go through the floor the normal force fn exerted by the floor equals the weight w plus the downward component of the applied force 38 sin 41 24 9. The force that your foot and the floor exert on each other is a friction force between the sole of your shoe and the floor. The actual normal force comes from the floor of the elevator exerting the same force as the baby s weight force which follows newton s third law. The floor exerts a reaction force forward on the professor that causes her to accelerate forward.