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if you’re in a car moving at a high speed, and you stop abruptly, what would happen when wearing a seatbelt as opposed to not wearing a seat belt? which of newton’s 3 laws would apply?

Newton's first law of motion or law of inertia

Explanation:

According to newton's first law, the law of inertia states that everybody continues its state of rest or of uniform motion in a straight line unless an uncompromised force acts on it.

When a high-speed moving car is abruptly stopped, a person sitting inside the car without wearing a seat belt continue to move forward.

Since the law of inertia opposes the state of the body which was in motion. The person would collide with the objects in his front and may cause injury.

So, while wearing a seat belt, this motion can be stopped as the person is attached to the seat. This reduces the impact and it is a safety measure.

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

i believe the answer is a hope it and is correct