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Do you mean JERK?
One of the possible causes of a Pontiac Bonneville to jerk during acceleration is that the car needs a tune up. The engine misfiring can lead it to jerk as you accelerate.
Poor driver or bad transmission.
Cylinder miss.
What causes a car to jerk while driving can be based on many factors. A car can sputter due to engine compression issues, bad transmission, engine misfire, bad spark plugs or even low fuel.
Inertia
Because a body in motion tends to stay in motion. See the link, The Car and The Wall.
When car was moving, passengers were also moving. When car suddenly stops, the moving passengers try to maintain their state of forward motion because of their inertia. so they move forward relative to their seats...
Slippage in the transmission or a bad torque converter
This happens because an object in motion tends to stay in motion
that an object at rest will remain at rest Inertia explain many common events. For example, if you are in a car that stops suddenly,inertia causes you to continue moving forward
yes it does according to the law of physics if the vehicle is in motion when the car stops suddenly, you will fling forward.