Question

newtons 3rd law phenomena explanation
directions: what is the force that accelerates a car forward when a driver hits the gas pedal?
(its not the engine)

1. write out what newtons 3rd law is.

for every action, there is an equal and opposite reaction

1. what object outside of a car is necessary for a car to drive? (confirm this answer with

mr. nguyen)
road

1. what part of the car interacts with the answer from part two?

tires

1. decide which way the car is going. draw an arrow indicating the direction.
2. now, draw the objects from part two and three. draw the force arrows that are created

between the two objects. label each arrow with the force variable, including where the
force comes from and what feels the force. which force do you think moves the car? is
that force going in the direction of the car?

Explanation:

Newton's 3rd Law states that for every action, there is an equal and opposite reaction. When a car's tires push backward on the road (action force), the road pushes forward on the tires (reaction force). This forward - pushing reaction force from the road on the tires is what accelerates the car forward. The road is the external object necessary for the car to move (as per Newton's 3rd Law, there needs to be an external object to provide the reaction force), and the tires are the part of the car that interacts with the road.

Answer:

1. For every action, there is an equal and opposite reaction.
2. Road
3. Tires
4. (Since no visual is provided for drawing the arrow, assume the car is moving forward as per the gas - pedal scenario. So draw an arrow pointing forward)
5. Draw the road and the tires. The force from the tires on the road ($F_{tire - road}$) is backward, and the force from the road on the tires ($F_{road - tire}$) is forward. The $F_{road - tire}$ force moves the car, and yes, it is in the direction of the car's motion (forward).