Question

matching question
imagine a person wearing a seatbelt in a car has to hit their brakes suddenly. match what the person experiences with newtons laws of motion that explain them.
instructions
the person feels their seatbelt pulling them back.
the person feels a backward force as the car slows down.
the person moves forward in their seat as the car slows down.
newtons third law of motion newtons second law of motion

Explanation:

• Newton's third law of motion: When the person pushes against the seatbelt (action force), the seatbelt pulls back on the person (reaction force). So, "The person feels their seatbelt pulling them back" is explained by Newton's third law.
• Newton's second law of motion ($F = ma$): As the car slows down (has a deceleration $a$), and the person has mass $m$, there is a force ($F$) acting on the person. So, "The person feels a backward force as the car slows down" is explained by Newton's second law.
• Newton's first law of motion (law of inertia): An object in motion tends to stay in motion. The car slows down, but the person's body (due to inertia) wants to keep moving forward. So, "The person moves forward in their seat as the car slows down" is explained by Newton's first law.

Answer:

• The person feels their seatbelt pulling them back: Newton's third law of motion
• The person feels a backward force as the car slows down: Newton's second law of motion
• The person moves forward in their seat as the car slows down: Newton's first law of motion