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solution_pdf8 - reddy(ar38357 Kinematics A clancy(SCI411-2...

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1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 (part 1 oF 2) 10.0 points A physics book is moved once around the perimeter oF a table oF dimensions 1 m by 3 m. IF the book ends up at its initial position, what is the magnitude oF its displacement? 1. 4 m 2. 6 m 3. 7 m 4. 5 m 5. 3 m 6. None oF these 7. 2 m 8. 8 m 9. 1 m 10. 0 m correct Explanation: Since its fnal position is the same as its initial position, the displacement is 0. 002 (part 2 oF 2) 10.0 points What is the distance traveled? 1. 2 m 2. 0 m 3. 4 m 4. 3 m 5. 6 m 6. 1 m 7. None oF these 8. 7 m 9. 5 m 10. 8 m correct Explanation: The distance traveled is the perimeter oF the table: d = 2 + 2 w = 2 (1 m) + 2 (3 m) = 8 m . 003 (part 1 oF 2) 10.0 points A runner is jogging at a steady 5 . 7 km / hr. When the runner is 4 . 6 km From the fnish line, a bird begins ±ying From the runner to the fnish line at 28 . 5 km / hr (5 times as Fast as the runner). When the bird reaches the fnish line, it turns around and ±ies back to the runner. Even though the bird is a dodo, we will assume that it occupies only one point in space, i.e. , a “zero” length bird. L v b v r finish line How Far does the bird travel? Correct answer: 7 . 66667 km. Explanation:

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solution_pdf8 - reddy(ar38357 Kinematics A clancy(SCI411-2...

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