1. Determine the magnitude of the pin reaction at B by (a) ingoring the fact that BD is a two-force member and (b) recogniazing the fact that BD is a two-force member.

2. For the 70-N squeeze on the handles of the pliers, determine the force F applied to the round rod by each jaw. In addition, calculate the force supported by the pin at A.

3. Determine the components of all forces acing on each member of the loaded truss

4. In the spring damp shown, an internal spring is coiled about the pin at A and the spring ends bear against the inner surfaces of the handle halves in order to provide the desired clamping force. In the position shown, a force of magnitude P mc 28 N is required to release the clamp. Determine the compressive force at B if P = 0.

5. Determine the force P exerted on the twig G. Note that there is a horizontal line of symmetry for the handles, but there is no line of symmetry for the jaws.