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ef152-rec-2-2

# ef152-rec-2-2 - Do 5 jumping jacks Now stand with your...

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EF 152 – Physics for Engineers Spring, 2009 Recitation 2.2 Statics, Stability Task 1. The class favorite - concept questions! 1. A box is placed on a ramp in the configurations shown below. Friction prevents it from sliding. The center of mass of the box is indicated by a blue dot in each case. In which case(s) does the box tip over? a. all b. 1 only c. 2 only d. 3 only e. 2 and 3 2. Consider the two configurations of books shown below. Which of the following is true? a. case 1 will tip b. case 2 will tip c. both will tip d. neither will tip 3. What type of equilibrium is the bowling ball in? a. Stable b. Unstable c. Neutral d. Not in equilibrium Task 2: Exercise Break Stand up and touch your toes.

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Unformatted text preview: Do 5 jumping jacks. Now stand with your heels against a wall and touch your toes. 1 2 3 1/2 1/4 1/2 1/4 1 2 EF 152 – Physics for Engineers Spring, 2009 Task 3. Baby Seat Help Cheryl figure out Chapter 11, Problem 31 so she can have Ethan sit at the table and enjoy some cheese and nachos with her. Task 4. Pushing a box Work Chapter 11, Problem 72. How does the answer change if the mass of the box is doubled to 100 kg? Task 5. And we are still having “Fun with Free Body Diagrams!” Draw proper free body diagrams for the following homework problem. The problem asks for the force in the hydraulic cylinder, and the horizontal and vertical reaction at A....
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ef152-rec-2-2 - Do 5 jumping jacks Now stand with your...

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