11_InstSolManual_PDF_Part16

11_InstSolManual_PDF_Part16 - V 5 V 1 1 2 D p B 2 5 V 1 1 2...

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11.69. Set Up: When the ride is at rest the tension in the rod is the weight 1900 N of the car and occupants. When the ride is operating, the tension in the rod is obtained by applying to a car and its occupants. The free- body diagram is shown in Figure 11.69. The car travels in a circle of radius where l is the length of the rod and is the angle the rod makes with the vertical. For steel, Figure 11.69 Solve: (a) (b) gives and Reflect: gives and As increases increases and becomes small. Smaller means increases, so the rods move toward the horizontal as increases. 11.70. Set Up: Let be downward. The tension in the wire equals the 980 N weight of the mass. gives Solve: (a) (b) 11.71. Set Up: Density is For water, and air pressure at the surface of the earth is Solve: (a) On earth On Venus this same mass m of water has volume On Venus, so and The density increases by 0.4%. (b) The difference is very small and not noticeable. Reflect: The increase in pressure decreases V and increases density. r v / r E 5 100.4%. r V 5 1004 kg / m 3 r E 5 1000 kg / m 3 r V 5 m V 5 m 0.9958 V 0 5 1.004 m V 0 5 1.004 r E . V 5 V 0 1D
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Unformatted text preview: V 5 V 1 1 2 D p B 2 5 V 1 1 2 91 1 1.01 3 10 5 Pa 2 2.2 3 10 9 Pa 2 5 0.9958 V . r E 5 m / V . D p 5 92 p 2 p 5 91 p . p 5 1.01 3 10 5 Pa. B 5 2.2 3 10 9 Pa r 5 m V . D V 5 2 V D p B . Y 5 l F ' A D l 5 1 4.00 m 21 980 N 2 1 0.10 3 10 2 4 m 2 21 6.0 3 10 2 3 m 2 5 6.5 3 10 10 Pa. f 5 1 2 p k m 5 1 2 p 1.63 3 10 5 N / m 100 kg 5 6.4 Hz k 5 2 F ' x 5 2 2 980 N 6.0 3 10 2 3 m 5 1.63 3 10 5 N / m. F x 5 2 kx F ' 1 x v u cos u cos u F ' v cos u 5 mg / F ' . F ' cos u 5 mg g F y 5 ma y D l 5 1 2.04 3 10 3 N 1900 N 2 1 0.18 mm 2 5 0.19 mm F ' 5 ml v 2 5 1 1900 N 9.80 m / s 2 2 1 15.0 m 21 0.838 rad / s 2 2 5 2.04 3 10 3 N. F ' sin u 5 mr v 2 5 ml sin uv 2 g F x 5 ma x D l 5 l F ' YA 5 1 15.0 m 21 1900 N 2 1 2.0 3 10 11 Pa 21 8.00 3 10 2 4 m 2 2 5 1.78 3 10 2 4 m 5 0.18 mm y u x F ' cos u F ' sin u mg F ' a rad 5 r v 2 v 5 8.00 rev / min 5 0.838 rad / s. Y 5 2.0 3 10 11 Pa. u r 5 l sin u , g F S 5 m a S F ' F ' 11-16 Chapter 11...
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This note was uploaded on 03/06/2009 for the course PHYS 114 taught by Professor Shoberg during the Spring '07 term at Pittsburg State Uiversity.

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