# 1D motion - dang(d2965 1D motion mostarshed(338-A1 This...

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dang (d2965) – 1D motion – mostarshed – (338-A1) 1 This print-out should have 40 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points An object is released From rest on a planet that has no atmosphere. The object Falls Freely For 3 m in the frst second. What is the magnitude oF the acceleration due to gravity on the planet? 1. 6 . 0 m / s 2 2. 3 . 0 m / s 2 3. 1 . 5 m / s 2 4. 10 . 0 m / s 2 5. 12 . 0 m / s 2 002 (part 1 oF 2) 10.0 points A ball is dropped From the top oF a tall build- ing oF height h = 50 m . About how long does it take For the ball to hit the ground? (Neglect air resistance.) 1. 2.4 s 2. 5.2 s 3. 10 s 4. 3.1 s 5. 1 s 003 (part 2 oF 2) 10.0 points IF the ball has lost halF the magnitude oF its impact momentum immediately aFter it re- coils, to what height does the ball reach aFter its frst rebound? 1. h 3 2. h 2 3. h 4 4. h 5. 0 004 10.0 points In the absence oF air Friction, an object dropped near the surFace oF the Earth ex- periences a constant acceleration oF about 9.8 m/s 2 . This means that the 1. speed oF the object as it Falls is 9.8 m/s 2 . 2. object Falls 9.8 meters during the frst second only. 3. derivative oF the distance with respect to time For the object equals 9.8 m/s 2 . 4. speed oF the object increases 9.8 m/s 2 during each second. 5. object Falls 9.8 meters during each sec- ond. 005 10.0 points An object is shot vertically upward into the air with a positive initial velocity. What correctly describes the velocity and acceleration oF the object at its maximum elevation? Velocity Acceleration 1. positive negative 2. negative negative 3. zero negative 4. positive positive 5. zero zero 006 10.0 points A 500-kilogram sports car accelerates uni- Formly From rest, reaching a speed oF 30 me-

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dang (d2965) – 1D motion – mostarshed – (338-A1) 2 ters per second in 6 seconds. What distance has the car traveled during the 6 seconds? 1. 30 m 2. 90 m 3. 60 m 4. 15 m 5. 180 m 007 10.0 points The graph shows the velocity v as a function of time t for an object moving in a straight line. t v 0 t Q t R t S t P Which graph shows the corresponding dis- placement x as a function of time t for the same time interval? 1.
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1D motion - dang(d2965 1D motion mostarshed(338-A1 This...

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