Inertia=An object in motion tends to stay in motion until it is acted upon by an outside force
An object in motion wants to stay in motion.
In a head on collision, they will be thrown forward in each vehicle.
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This is an example of the property of inertia. It is a body of mass' tendency to resist change in motion. The man was in motion at the speed of the bus. When the bus slows, the mass of the man resists change in motion and continues to move forward. It's basically the rebelliousness of matter.
A rear end collision will cause your head to press against the headrest. You might also be pressed forward during this type of collision, but the first movement is against the headrest.
The air bag absorbs the impact of you moving forward during a collision.
When the car stops, the person continues forward, at the same speed that the car was travelling at. Into the dash, into the windscreen, maybe even THROUGH the windscreen and onto the road. Beat up, cut up and run over - not a good thing.
Yes, wearing a seat belt in a car is important because of inertia. Inertia is the tendency of objects to resist changes in their motion, so when a car stops suddenly, your body continues to move forward due to inertia. A seat belt helps to restrain your body and prevent serious injuries in the event of a sudden stop or collision.
In a head on collision, they will be thrown forward in each vehicle.
It is due to the physical law of INERTIA! All of the objects in the vehicle are travelling at the same speed as the vehicle itself. When the vehicle is suddenly stopped by an immovable object (e.g., a concrete wall) all unattached objects in the vehicle continue to move in the direction of travel until they also encounter the immovable object or the now-stopped vehicle. Even a common housefly in a vehicle going 75 mph is also going 75 mph, and if the car hits a tree at full speed, the fly hits the windshield at the same speed as the car hitting the tree.
When the passenger jumps out of a moving bus, they retain the forward momentum they had inside the bus, causing them to fall forward face-down due to inertia. This happens because their body continues to move at the same speed and direction as the bus until acted upon by an external force.
When the car stops, the person continues forward, st the same speed thst the car was travelling at. Into the dash, into the windscreen, maybe even THROUGH the windscreen and onto the road. Beat up, cut up and run over - not a good thing.