1997MT3s

1997MT3s - Physics 125 Test III November 11, 1997 This is a...

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Physics 125 Test III November 11, 1997 This is a closed book exam. You have 70 minutes to do the exam. You may use a calculator. Where appropriate, draw neat diagrams, labeling your axes and clearly indicating what variables you are using. Use Cartesian coordinates. Give solutions to 2 or 3 significant figures. Grading is based on what appears on your paper. In general, the answer to a problem by itself is not sufficient to obtain credit. The grader should be able to determine, without guessing, the steps you took to arrive at a solution. If more than one answer is given only one can be graded . Please indicate clearly which one you want to be graded. Please remember to put your name on the test booklet and SIGN THE PLEDGE.
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Some (possibly) useful equations s = θ r v = ϖ r a t = α r a r = ϖ 2 r or a r = v 2 r P = M V cm Momentum of Center of Mass F net , ext = M A cm Acceleration of CM V cm = R , A cm = R Rolling Conditions K = 1 2 I 2 Rotational kinetic energy I = 2MR 2 2 Point masses I cm = MR 2 Hoop through axis I cm = 2 5 MR 2 Ball through diameter I cm = 1 12 ML 2 Rod through midpoint I cm = 1 2 MR 2 Cylinder or disk through axis
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1. (25 points) Collisions A body of mass M 1 = 1.0 kg collides with a body of mass M 2 = 9.0 kg. The two bodies stick together, i.e. a totally inelastic collision occurs.
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1997MT3s - Physics 125 Test III November 11, 1997 This is a...

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