You can have worn universal joints, wear or low oil in transfer case or differential(s),transmission low on fluid or needs band adjustment. Seems to be one of these problems along drive train.
Do you mean JERK?
Rolling friction causes a car to stop.
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.
low transmission fluid clogged fluid filter
Slippage in the transmission or a bad torque converter
try changing plugs and wires
It COULD be a motor mount or worn suspension component.
The car tilts forward on the shocks as you slow down. Then when you finally stop, the front shocks pop back up, and you are thrown slightly backwards. :)
Lack of propulsion.