first is that you are moving second is which direction.
Looking at the ground beside a moving vehicle helps you judge its
Looking at the ground beside a moving vehicle ensures you see if they are coming into your lane or not.
show that you are moving, and in what direction
Yes. when you look at the tires of a vehicle (we call "ground viewing") you can tell the speed and if the vehicle is moving toward you.
I can also say that if you look out of the car window and see what you are passing by for example, different trees, buildings or other objects if they are near you then you will indeed be able to tell the vehicle in a moving state and at the speed.Example: the car is running at 100 km/h which is quite fast. If you look up in the sky at the clouds then you will think it is moving slowly because the sky is so far away. But if you pay attention to the objects that on the ground proximal to the road like the buildings, street lamps then you can tell it is moving fast since all of those objects are near to you.
You fall when you jump from a moving vehicle because you get the moving vehicle speed and immediately you have your feet on a stable ground and you have either to stop all of sudden or to run at the vehicle speed (that is higher than your capacity) .
They would have to have different base velocities. One on the ground, the other in a moving vehicle.
yes it is illegal to shoot from a moving vehicle.
I'm having the same problem. It only happens when vehicle is moving, so I suspect a bad ground.