201f01final

201f01final - Name Total Points(Last(First Physics 201 Name...

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Name: ______________________________________________________________ Total Points: _______ (Last) (First) Physics 201 Name: Code Name: (The code name is to hide your identity so your grade for this class can be published on the class website. If you don’t want to have your grade on the website don’t submit a code name.) Write also your name in the appropriate box of the scantron

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Name: ______________________________________________________________ Total Points: _______ (Last) (First) Multiple choice questions Answer all of the following questions. Read each question carefully. Fill the correct bubble on your scantron sheet . Each question has exactly one correct answer. All questions are worth the same amount of points. On a frictionless horizontal surface, three boxes are connected by inextensible massless strings and are pulled by a force F as shown in the figure. The masses of the boxes are proportional to their sizes. Which string has to be the strongest so as not to break? A. A B. B C. C D. A, B and C must be equally strong 1. E. A and B must be equally strong.
Name: ______________________________________________________________ Total Points: _______ (Last) (First) The figure shows a top view of a ball on the end of a string traveling counterclockwise in a circular path. The speed of the ball is constant. If the string should break at the instant shown, the path that the ball would follow is A. 1 B. 2 C. 3 D. 4 2. E. impossible to tell from the given information A 5-kg object undergoes a displacement j i s ˆ 2 ˆ 5 + = r . During the displacement, a constant force j i F ˆ 8 ˆ 3 + = r acts on the object. All values are given in SI units. The work done by the force F r on this object is (in Joules) A. –15 J 3. B. 16 C. -34 D. 1 E. 6

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Name: ______________________________________________________________ Total Points: _______ (Last) (First) A motor develops power as shown in the graph. The energy expended by the motor in the time interval between t = 10 s and t = 30 s is A. 1.0 J 4. B. 1.3 J C. 0.20 kJ D. 0.60 kJ E. 0.70 kJ
(Last) (First) The shaded area in the figure represents a uniformly thick sheet of metal. The center of mass of the sheet is closest to point A. 1 5. B. 2 C. 3 D. 4 E. 5 You shoot an arrow with a mass of 0.54 kg from a bow. The bow exerts a force of 125 N for 0.65s. The speed of the arrow as it leaves the bow is A. 0.10 km/s 6. B. 0.15 km/s

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This note was uploaded on 01/18/2009 for the course PHYS 201 taught by Professor F during the Spring '09 term at Seattle University.

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201f01final - Name Total Points(Last(First Physics 201 Name...

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