Assuming this is a front wheel drive vehicle, a CV joint in one of the halfshafts is going bad.
might have misaligned or loose wheels
The pistons are running in the cylinders of the engine, so when the rpm of the engine rises, the pistons quickley build up speed. It is this rapid acceleration of the pistons that casue the car to shake.
If a car shakes during acceleration the brake rotors may be damaged. If the rotors are damaged they will be unstable as the tires rotates making the whole car shake.
sounds like you need a tune-up
Well, voltage wise, you have a lot going on when your are cranking over the engine, so some flutter, or shake is normal.
check to see if your wheel is rubbing up against something
have front suspension checked
Warped rotor and worn out brake pads.
I would suspect you have a broken motor mount. If that is not the case, then you need to inspect all suspension parts, and the drive shaft universal joints.
If your car shakes while accelerating check your motor mounts. Then check your transmission.
because you have crashed into somthing you pillok, try looking where you are going first
Yes. A ngular acceleration is to do with something turning. Radial acceleration is linear acceleration perpendicular to the angular acceleration.