CK-12-Physics - Intermediate

5.1. Normal Force and Friction Force http://www.ck12.org mu and pronounced “myoo” in English. The rougher or stickier the contac ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions FIGURE 5.5 Check Your Understanding What are the units ofμk? Answer:Si ...

5.1. Normal Force and Friction Force http://www.ck12.org FIGURE 5.6 Therefore∑ x F=Fcosθ−fk= 0 ,60 cos 30◦=fk;fk= 51. 96 = 52 N. ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions The man in the figure is trying to slide a heavy couch. He exerts a forc ...

5.1. Normal Force and Friction Force http://www.ck12.org FIGURE 5.8 Figure5.9). (a) What is the magnitude of the static friction ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions 5.2 Inclined Planes Objectives The student will: Understand how to anal ...

5.2. Inclined Planes http://www.ck12.org FIGURE 5.10 FIGURE 5.11 FIGURE 5.12 In order to answer these questions, we establish a ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions The angle of the incline is the same as the angle between they−axis and ...

5.2. Inclined Planes http://www.ck12.org True or False: The weight of a crate is 200 N. The normal force exerted on it when pla ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions ∑ x F=fs−mgsinθ= 0 ,re placing fswith μsFN, μsFN∗mgsinθ= 0 ,re placing F ...

5.2. Inclined Planes http://www.ck12.org direction down the book cover as positive. Using Newton’s Second Law: ΣFx=mgsinθ−fk=max ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions An Incline Plane-Pulley System Illustrative Example How do we determine ...

5.2. Inclined Planes http://www.ck12.org They−component ofMg:Mgcosθ Newton’s Second Law equation for the massm: We assume thatmg ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions Let’s find the acceleration of the system and the tension in the rope fo ...

5.3. Circular Motion http://www.ck12.org 5.3 Circular Motion Objectives Students will learn that in circular motion there is alw ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions FIGURE 5.18 by pushing their foot backward with a horizontal component o ...

5.3. Circular Motion http://www.ck12.org FIGURE 5.20 5.21 show two “almost” similar triangles. FIGURE 5.21 The magnitudes of−V 1 ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions approximate ratio between the two triangles by assuming that during the ...

5.3. Circular Motion http://www.ck12.org Answer: False. As long as the car does not skid, there is no relative motion between th ...

http://www.ck12.org Chapter 5. Forces in Two Dimensions 5.4 Forces in Translational Equilibrium Objective The student will: Und ...