Hi, I've done rotational mechanics at school and there are certain things that really feel strange about it. In Physics everything has a reason. So I want to find out the reasons to certain things. firstly-we started off rotational mechanics by talking about angular displacement,angular velocity and angular acceleration. The vector product evidently gives us a direction for each of these quantities obeying the righthand thumb rule. This doesn't really seem to have any physical significance at all! What does an object spinning around in a circle have to do with a direction (given by the righthand thumb rule) perpendicular to it?? Please explain this to me,I'll be greatly benefited.