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Serway_PSE_quick_ch06

# Serway_PSE_quick_ch06 - Physics for Scientists and...

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Physics for Scientists and Engineers, 6e Chapter 6 – Circular Motion and Other Applications of Newton’s Laws

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You are riding on a Ferris wheel that is rotating with constant speed. The car in which you are riding always maintains its correct upward orientation - it does not invert. What is the direction of your centripetal acceleration when you are at the top of the wheel? 1 2 3 33% 33% 33% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. upward 2. downward 3. impossible to determine
The centripetal acceleration is always toward the center of the circular path.

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You are riding on the Ferris wheel of question 1. What is the direction of the normal force exerted by the seat on you when you are at the top of the wheel? 1 2 3 33% 33% 33% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1. upward 2. downward 3. impossible to determine
The normal force is always perpendicular to the surface that applies the force. Because your car maintains its orientation at all points on the ride, the normal force is always upward.

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