Assertion (A): In the analysis of pin-jointed plane frames, the force method is generally preferable to the displacement
method.
Reason (R): The degrees of freedom for pin- jointed plane frames are generally much larger than the degrees of static
indeterminacy and thus force method requires less formulation and computation than the displacement method
Correct Answer:
Both Assertion (A) and Reason (R) are true, and Reason (R) correctly explains Assertion (A).
For pin-jointed plane frames, the degree of static indeterminacy is generally smaller than the number of kinematic degrees
of freedom. Therefore, the force method involves fewer unknowns and requires less computation than the displacement
method
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