Free body diagrams do not need to be drawn to scale ... the body is cancelled out by the combined upward push of the reaction force and the friction force. Considering the forces acting along ...

The diagram below shows some examples of vector ... the surface pushes back on the object with a balancing force. The normal reaction force always acts at right angles to the surface.

A new theory predicts one of the effects of macroscopic mechanical forces on mechanochemical organic synthesis by a ball mill. (left) Example of a ...