phys218-spring-2011-exam-1-practice

phys218-spring-2011-exam-1-practice - PHYS 218, Exam 1...

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Unformatted text preview: PHYS 218, Exam 1 Name: (Last) (First) (Middle) 1. Record 72 as your two-digit exam version number on the scantron form in the field TEST/QUIZ NUMBER. 2. Write your name here and on the scantron form. 3. Record your PUID number in the STUDENT IDENTIFICATION NUMBER field on your scantron form. 4. A numeric answer that is correct to within 1% error is considered correct. 5. For the acceleration due to gravity, please use g = 9 . 8 m/s 2 . 1 1. Suppose you toss a screwdriver vertically upward to a friend who is working on the roof. Neglect air resistance. While the screwdriver is in the air, its speed (a) remains constant (b) decreases as it travels upward (c) is zero (d) increases as it travels upward (e) none of the above 2. Suppose a man jumps from an airplane, opens his parachute, and reaches a constant terminal velocity of 25 m/s. His total mass, including parachute, is 100 kg. Once he has reached terminal velocity, the magnitude of the force due to air drag is, (a) less than 980 N but greater than 0...
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phys218-spring-2011-exam-1-practice - PHYS 218, Exam 1...

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