Recently published items

Homework set.  Identify student errors when drawing free body diagrams.

Homework set.  Calculate resultant moment of one or more couples. 

Homework set.  Find 2-D moments or balance moments using Verignon's theorem:  $ M = \pm F_x d_y \pm F_y d_x$

Homework set.  Determine the moment of a force using the definition of the moment, $M = F d_\perp$.

Homework set.  Problems involving two interacting particles.

Homework set.  Variations on problems involving single particle equilibrium.

Homework set.  Vector addition in two dimensions by summing scalar components.

Homwork Set.  Covers graphical, and trigonometric methods of vector addition.

Homework Set.  Three problems to brush up on trig skills.  Right triangles and sine and cosine law.

A group (chosen randomly, the groups with 6 and those 8 elements are available) is given by its multiplication table. The task is to check whether the group is commutative, to identify all elements of order $\le 2$, and to find a subgroup which has half as many elements as the given group.

(In German.)