Problem 1 Determine which of the given systems shown in a to

Problem 1: Determine which of the given systems shown in a) to f are statically determinate, statically indeterminate (including the degree of indeterminacy), and unstable (including external or internal unstable). Using the rules we discussed in the class to explain how you come to your conclusions. a) b)

Solution

Part B:

This structure is unstable because the number of reaction are less than the number of equilibrium equations.

This is determinate frame.

Degree of indeterminacy : 2+1+1-3-1-1 = -1.