300 EASY POINTS 1. When studying the motion of objects it is often useful to dra

Question

300 EASY POINTS 1. When studying the motion of objects it is often useful to draw a pictorial representation and free body diagram. List 3 advantage of drawing a free body diagram as the first step in solving a motion problem. 2.Describe or explain the Impulse- Momentum Theorem and give at least one example that illustrates the theorem. 3. When you drive fast on the Highway with muddy tires, you can hear the mud flying off the tires into your wheel wells. Why does the mud fly off? 4. Does a book at rest on the table have no forces acting on it? Explain 5. What are the two major sub -fields of mechanics, and what are they concerned with. Additionally, why is this important to understand?? 6. What is the difference between classical mechanics and Newtonian mechanics?

Explanation / Answer

1. Drawing a free body diagram can help determine the unknown forces on, moments applied to, and equations of motion of, the body and thus help to analyse a problem in statics or dynamics. In analysis of structures, free body diagrams for a component of a structure or, part thereof, are used in determining shear forces and bending moments.

2.

These concepts are merely an outgrowth of Newton's second law as discussed in an earlier unit. Newton's second law (Fnet = m

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