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Unformatted text preview: Physics 2211 A Quiz #4 Form #411 Name: Summer 2007 Version A • Print your name, test form number (3 digits at the top of this form), and student number (9 digit Georgia Tech ID number) in the section of the answer card labeled “Student Identification.” • Bubble the Test Form Number in columns 1–3, skip column 4, then bubble your Student Number in columns 5–13. • Free-response questions are numbered I–III. For each, make no marks and leave no space on your card. Show all your work clearly, including all steps and logic. Box your answer. • Multiple-choice questions are numbered 1–5. For each, select the answer most nearly correct, circle this answer on your test, and bubble it on your answer card. Do not put any extra marks on the card. • Turn in your test and answer card as you leave. Your score will be posted under “Course Standing” when it has been graded. Quiz grades become final when the next quiz is given. • You may use a calculator that cannot store letters, but no other aids. G = 6 . 673 × 10- 11 N · m 2 / kg 2 g Earth = 9 . 8m / s 2 Unless otherwise directed, all springs, cords, and pulleys are ideal, and drag should be neglected. I . (16 points) It is the end of the dog sled race, and a dog approaches the finish line over level ground pulling a 55kg sled. At 5.0m from the finish line, the sled is travelling at 6.0m/s. The coefficient of kinetic friction between the sled and the ground is 0.18 in these last 5.0m. The tiring dog exerts a force, ~ F , on the sled whose magnitude decreases as the finish line is approached, according to...
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This note was uploaded on 04/09/2008 for the course PHYSICS 2211 taught by Professor Uzer during the Spring '08 term at Georgia Tech.
- Spring '08