Find the resultant force from adding F1 + F2 + F3 where   F1 = 160 lbs at 65 degrees F2 = 90 lbs at 125 degrees F3 = 105 lbs at 285 degrees   Your answers should be reported with 3 significant figures for x-component and y-component and magnitude of resultant and angle of resultant.

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System of Forces

A force is an external influence or agent that changes the state of a system. According to Newton's second law, the force applied to a body is proportional to the change in momentum of a body. Hence, whenever a force is applied to a body, its momentum changes. If the body is at rest, under the action of force, its state of rest changes to motion. In other words, the magnitude of the momentum of the body changes from zero to a measurable value. Similarly, if the body possesses some initial velocity, it has some associated momentum, the effect of force can cause the body to halt or come to rest, that is, the momentum reduces to zero.