Hello everyone, i have this kind of problem, but i dont think i have enought knowledge of physics to solve it.

So here it is:

So here it is:

**The BULLET is in 2D coordinate system moving in time (T), with starting speed(V0) , that is decressing over time with acceleration(A).Coordinates of a bullet (X,Y) are always known.**

BULLET movement is defined by his spike!BULLET movement is defined by his spike!

*[[[Comment: Just like in real life, if you fire a bullet from a x,y,z coordinate in real world in time t, he cannot move backwards, it moves where the force leads him, but that "vector" force is defined by his spike.]]]***Important thing: BULLET can be rotated in 2D space in time (T). Rotation is (0<=angel<=360)degrees.****So at any time (T), an invisible force can rotate a BULLET for any angel. Center of rotation of a BULLET is back of his tail.**.*[[[Comment:Imagine a bullet was moving from a X=0,Y=100 with a starting speed (V0) in 2D coordinate system.That means that X coordinate of a bullet is always changing in time(T) and Y stays the same,Y=100.If invisble force rotated him for an angel, lets say PI/2 anti-clockwise(but dosnt matter wether is clockwise or anti-clockwise as long it is the angel of total rotation(that means that 1 coordiante stay same and other 1 is changing)). We can say that a total rotation has been done,becose now X coordinate is the same,and Y coordinate is now changing. But if its not the angel of total rotation, we can for example use PI/3, now both X and Y coordiantes of a bullet are chaning.]]]***Mathematicly define all proccess that are happening in time(T).**

Dont consider BULLET's mass, gravitational pull, or any kind of loss of BULLET's speed from other sorts of forces, except acceleration, that is always decressing.If BULLET stopped moving becose he lost his speed, he can be fired again at the same place where he stopped, but must be fired in direction that is facing.Remember: Only invisble force can change BULLET's angel after its fired in time (T).Dont consider BULLET's mass, gravitational pull, or any kind of loss of BULLET's speed from other sorts of forces, except acceleration, that is always decressing.If BULLET stopped moving becose he lost his speed, he can be fired again at the same place where he stopped, but must be fired in direction that is facing.Remember: Only invisble force can change BULLET's angel after its fired in time (T).

*[[[Comment:If you need any more information, il give.]]]**[[[Comment:I forgot to say, but it is very IMORTANT.If angel of X-axis and BULLET is 0 degrees, and BULLET is rotated in time (T) for lets say PI/2, rotation CANNOT HAPPEN INSTANTLY, ROTATION IS ALSO HAPPENING IN TIME (T), with slowly incresing to PI/2.*

So for any angel ANGEL, rotation of a BULLET to angel ANGEL is also happening in time (T) whether clockwise or anit-clockwise.

If BULLET's rotation is in motion, and he got rotated for -PI/6, the last rotation of a BULLET stops(last rotation in this case is Pi/2) and new on to -PI/6 strats to increse/decrese.So for any angel ANGEL, rotation of a BULLET to angel ANGEL is also happening in time (T) whether clockwise or anit-clockwise.

If BULLET's rotation is in motion, and he got rotated for -PI/6, the last rotation of a BULLET stops(last rotation in this case is Pi/2) and new on to -PI/6 strats to increse/decrese.

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