# quiz4 - Physics 213 Quiz 4 4:30 PM Nov 4 2011 T Bolton Name...

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Part I: Multiple choice questions to be answered on your Scantron card (45 points total). AD C B F 1 F 2 The f rst three problems refer to the f gure above. A uniform beam rests on the two triangular supports that provide forces F 1 and F 2 acting on the beam. The right hand support remains f xed, but the left hand support can move to the positions A D showninthe f gure. 1. (3 points) Which position for the left hand support cannot produce static equilibrium for the beam? 2. (3 points) Which position for the left hand support produces static equilibrium with F 2 ' 0 ? 3. (3 points) Which position for the left hand support produces static equilibrium with the smallest value for F 1 ? 4. (3 points) If a cat falls out of out a tree, it almost always manages to land on its feet, no matter how it rotates as it falls. What does the cat do to make this happen? (a) It changes its rotational inertia.
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quiz4 - Physics 213 Quiz 4 4:30 PM Nov 4 2011 T Bolton Name...

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