review2

# review2 - work – kinetic energy theorem a m F = ∑...

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Review for Test #2 Responsible for: - Chapters 5 & 6, sections 3-6, 7-1, 7-2, 12-1, 12-2, and 12-3* (also chapters 1-4) - Notes from class - Problems worked in class - Homework assignments Test format: - 18 problems (5 points each)** - multiple-choice, some T/F, 2 bonus probs. - Time: 75 minutes Test materials: - Pencil, eraser, and calculator - No formulae sheet or paper, Closed textbook/notes - Student ID

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Material Covered Chapters 5-6: Forces and Newton’s Laws of Motion - normal, friction, weight, mass, tension, ropes, pulleys - Newton’s 1 st , 2 nd , and 3 rd Laws - Free-body diagrams, inertial frames - Application of - Spring force - Uniform circular motion - centripetal acceleration, banked curves Sections 12-1, -2, and -3: Universal gravitational force, orbital speed, orbital period, Kepler’s Laws Section 3.6: Relative velocity, Galilean Transformation Section 7-1 and -2: - kinetic energy, work

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Unformatted text preview: - work – kinetic energy theorem a m F = ∑ Example Problem , In an amusement park ride, passengers stand inside a 5.0-m diameter hollow steel cylinder with their backs against the wall. The cylinder begins to rotate about a vertical axis. Then the floor on which the passengers are standing suddenly drops away. If all goes well, the passengers will “stick” to the wall and not slide down. Clothing has a static coefficient of friction between 0.60 and 1.0 and a kinetic coefficient between 0.40 and 0.70. A sign at the entrance says “No children under 30 kg allowed.” What is the minimum speed for which the ride is safe to ride? Example Problem 3.78 , As two boats approach the marina, the velocity of boat 1 relative to boat 2 is 2.15 m/s in a direction 47.0° east of north. If boat 1 has a velocity that is 0.775 m/s due north, what is the velocity (magnitude and direction) of boat 2?...
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