There is no way the impact momentum lifted the right shoulder.
Oh boy, you really need to read the posts you are responding to.
Of course there is no way that a downward impact to the right side of JBC's torso will cause his right shoulder to lift.
The Z-film shows his LEFT SHOULDER lifting.
Except that the right shoulder lifts and moves forward between z222 and z224:
Here is a longer clip:
So if you think he was hit by a bullet in the right armpit, why would the right shoulder lift and turn forward? After that the left shoulder lifts but there is no reason to believe it is anything other than a voluntary movement as he prepares to turn around.
Second, the ratio of resulting body speed to incoming bullet speed is in inverse proportion to the ratio of their masses. A human male trunk is about 55% of total body mass or about 55 kg for a 100 kg person. So the incoming 10g (.01kg) bullet at 450 m/s (1500 fps) imparts 4.5 kg m/s of momentum to the torso and the torso recoils at a speed of 4.5/55 =.08 m/s or 8 cm/s. That works out to 4.5 mm per frame. You are not going to see sudden motion of the body in one frame or even over 2 or 3 frames
Pure baloney.
The physical collision of two solids transfers momentum instantaneously.
Yes, of course. The momentum is transferred from the bullet to the body while it passes thorugh the chest. That occurs almost "instantaneously" (about 1/1000th of a second to pass through JBC's torso).
The momentum transferred is the bullet mass x the change in velocity. But since the bullet also must have struck the right wrist with a speed of about 1000 fps in order to shatter the radius, the loss of speed in the torso is only about 500 fps or about 150 m/s. So it would be about 3 mm/second of movement. How far do you think that can move the body in 1/18th of a second? Answer: 3/18th of a mm. Do you think you can see that in the zfilm?
The movement of the shoulders is much greater than 3/18ths of a millimetre per frame. What this means is that the movement seen between z222 and z228 is not from a bullet but is a voluntary movement.