exam1_f10_ans - through incorrect or irrelevant work. a) 10...

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Grading key Exam 1 Fall 2010 Part A – 6 points each. Grade only the answer. Put an X through their answer if it is wrong. 1 E 2 B 3 B or C. I forgot to change the question to have only one answer. 4 D 5 C 6 B 7 A 8 B 9 B 10 C Part B - Grade only the answer. Put an X through their answer if it is wrong. 11 - 2 points each. Everyone gets full marks for this one because I forgot to say that the object was in the plane of the paper. 12 - 7 points. B 13 - 7 points. B Part C – Grade each part separately. Give partial credit up to the point where they go wrong. Put an X
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Unformatted text preview: through incorrect or irrelevant work. a) 10 points 4 points for applying F=ma or eqs of constant acceleration to the vertical motion. 4 points for deducing 1 2 2 h gt = or the numerical equivalent. 2 points for the correct soln., 0.10 t s = b) 10 points Give full credit if they used an incorrect value from part a) correctly here. 4 points for applying F=ma or eqs of constant acceleration to the horizontal motion. 4 points for deducing x v t = and using t from part a). 2 points for the correct soln., 20 m v s = v a F D E E...
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