Question

11. Which law explains when a person is not wearing a

seatbelt and flies through a car window when
someone slams on the brakes?

Answer 1

Newtons 1st law of motion states that, "An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force."

The person in moving at a constant speed while inside the car. When someone slams on the brake, the person is still moving at the speed the car was travelling. This throws the person outside the window, because they did not have a seat-belt to slow down the unbalanced force. This is also called the law of inertia, but it is referred to as Newtons 1st law of motion.

I hope this helps! :)

Answer 2

Newtons 1st law

Step-by-step explanation:

Newtons first law can be summarized by intertia; an object at rest will remain at rest, and an object in motion will remain in motion unless an unbalanced force is applied.

Lets say a car is moving at 25m/s. The person in the car is also moving at 25m/s. If the driver suddenly slams on the brakes, the car will stop moving, but the person will not stop, as they were already moving from before. There are no 'brakes' on a human, so the driver will smash through the windshield most likely.

The driver was already in motion, and when the car is at rest, for that little time, the human is not at rest, the human is still in motion so they will remain in motion, and the unbalanced force acted on them will be the windshield, or whatever it may be to cause the human to remain at rest.