Shear and Bending Moment diagram for a beam with several concentrated loads.  Student can't see V & M diagrams a hints.

Sum three force vectors based on a written description of the situation.

An A-frame structure supporting a force or a moment.  One leg is a two force body.

Find all forces on a two-part, symmetrical frame supporting a load. 

An A-frame structure supporting a force and a moment. The feet are at the same vertical position, so taking moments at one foot yields the y component of the reaction at the other.

Classic machine problem.  Find the mechanical advantage of a pair of pliers and the force on the hinge pin.

Students seem to freak out when their answer is not written exactly the same as the answer provided. This question tries to enforce that $(x-y)=-(y-x)$ and $\frac{a-b}{c-d}=\frac{b-a}{d-c}$

Solve for the internal force in three members of a truss.

Friction and Accelration of a block with 2 forces applied

Find the rectangular (scalar) components of a force for two coordinates systems.

3 Forces Applied to an Eye bolt.  Use force components to calculate the Reaction force.

Students need to find solution to simultaneous linear equations with randomised coefficients.

Two forces act on a bell crank. This problem has two unknown magnitudes and an unknown direction which makes it tricky to solve by the equilibrium equation method.  

The solution is much simpler if three force body principle is used.

Find the reactions of a rigid body (a triangular plate) at a pin and roller, using the three-force body principle.

Two known forces, and a third with known magnitude act on a rigid body.  Apply $\Sigma M = 0$ about a pin restraint to determine the direction of the third force.  The problem has two valid answers.

Replace two forces with a equivalent force-couple system at a specified point.

A block of given mass is sliding down the plane, with given acceleration or a given coeff-of-friction. Find the normal reaction force, the parallel force and the missing value of a and mu.

Calculation of max design capacities of reinforced concrete beams with and without shear links

Determine frictional force acting on a block on an incline.  Coefficients of friction, weight and a horizontal force are given

3 Forces Applied to an Eye bolt.  Use force components to calculate the Reaction force.

First question on forces in equilibrium.

Replace two parallel forces with an equivalent single force

Simple truss with a zero-force member

An A-frame structure supporting a load at the top.  Simple because both legs are two force bodies.