It's probably a mis-fire on one or more cylinders. Run a compression check on the engine, examine the sparkplugs as you do that and see if there is excessive build-up or damage and watch for oil fouling. If it's just simple build-up, and there isn't any oil fouling, just replace the plugs and wires. If it's oil fouling, you'll probably need some engine work.
Gravity causes falling objects to accelerate.
Accelerate, motion is generated by applying force to mass.
THRUST
the brakes
The violent shaking causes buildings to fall. It also causes causality loss of the people inside it.
Speed, velocity.
The grid of time.
Because sometimes the universe is shaking, and that is what causes it.
Violent shaking can cause certain soils to flow. The shaking results from a nearby earthquake.
Telling them to say no
it causes land slides
The natural constant force of attraction.