ENGINEERING MECHANICS GATE PI PAPER TECHNICAL SECTION PART 2
COMPOSITION OF FORCES NUMERICAL PROBLEMS Composition of two forces . The reduction of a given system of forces to the simplest system that will be its equivalent is called the problem of composition of forces. Resolution of a force . The replacement of a single force by a several components which will be equivalent in action to the given force is called resolution of a force.
Action and reaction Often bodies in equilibrium are constrained to investigate the conditions. hl R4 A-
ody diagram Free body diagram is necessary to investigate the condition of equilibrium of a body or system. While drawing the free body diagram all the supports of the body are removed and replaced with the reaction forces acting on it. Draw the free body diagrams of the following figures
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