Fundamental Problem 4.41 Part A Determine the resultant force and specify where on the beam measured from A. Assume w, = 5kN/m and wz = 3kN/m. (Figure 1) acts Determine the magnitude of the resultant force. Express your answer to three significant figures and include the appropriate units. ? FR = 18 kN Submit My Answers Give Up Incorrect; Try Again; 2 attempts remaining Figure 1 : of 1 Part B Determine the distance between A and the resultant's line of action. WI Express your answer to three significant figures and include the appropriate units. W2 HÀ ? Value m 4.5 m 1.5 m- Submit My Answers Give Up

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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.