A force is given in the vector form, passes thru the point P whose coordinates are [1,2,2] in a cartesian coordinate system and are the unit vectors in the x,y and z directions respectively. Q is a point whose coordinates are [4,3,6].

i)Find the vectorQP

ii)find the maqnitude the moment of the force about the pointQ.

iii)Find the unit vector in the direction of the moment...

If its possible to sketch a diagram too would be great...I just cant understand VECTORS!