Most likely you have a bad "universal joint" or "U-joint". There are two: one on each end of the main driveshaft It could be either one that is causing the symptoms, but if that is the fix, you might as well change both since it is a relatively cheap fix. Don't ignore it too long because as it gets worse, the driveshaft can drop to the ground and you will be stuck. It could also be the "rear end" itself which is much more money to replace.
it is shifting gears
Could be several reasons and pretty much the same for any vehicle: -Improper replacement -Bad forward universal joint causing vibration at transmission tail -Unbalanced driveshaft causing vibration at transmission tail -Bad transmission mount Universal joints usually "clunk" when bad Unbalanced driveshafts will cause a vibration when driving - the faster the speed the more the vibration
vibration
An orthodontist.
When you are stopped at a light, and it turns green, you start to drive forward. That is acceleration.
yes
false A car can have a negative acceleration and be speeding up. A negative acceleration determines the direction of the acceleration A car with forward acceleration will speed up in the forward direction A car moving forward with a negative acceleration will slow down A car not moving with a negative acceleration will speed up in the backward direction A car moving backward with a negative acceleration will speed up in the backward direction
Actually, it depends on how you define the coordinate axes, but usually when moving forward, negative acceleration decreasesspeed, positive acceleration increasesit.
moving forward continuesly
The car's acceleration is in forward direction.
Being forward and centered helps you feel your load shifting or swaying better.
Being forward and centered helps you feel your load shifting or swaying better.