Influence Lines 1. A point load of 5 kips is applied to a 10' cantilever beam. The load is applied anywhere on the beam. What is the worst shear experienced by the beam (absolute value in kips)? 2. A point load of 5 kips is applied to a 10' long cantilever beam. The load is applied anywhere on the beam. What is the worst moment experienced by the beam (absolute value in kip-ft)? 3. A point load of 5 kips is applied to a 20' long cantilever beam. The load is applied anywhere on the beam. What is the largest possible reaction (absolute value in kip)?

Q: For a beam having the cross section shown, deter- mine the largest allowable vertical shear if the…

A: At centroid ; Q = 2 ×10×40×40 +20×50×10= 42,000 mm3 = 4.2×10-5 m3 t = 50 mm  So, Q/T = 840 mm2

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Q: Q2. Draw the influence line for ( Rb, Rc, Rf, Rg, Mp, Mm, and Mb) P m A B C D E F mm n mmm b b b

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Q: Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be…

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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.