08_InstSolManual_PDF_Part16

08_InstSolManual_PDF_Part16 - 8.00 kg 2 1 9.80 m / s 2 1 3...

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8.58. Set Up: Let be the direction the bullets travel. Solve: This is the average force on the bullets. The average recoil force is 12.0 N, in the opposite direction. 8.59. Set Up: Let be west and be north. The before and after diagrams are sketched in Figure 8.59. Figure 8.59 Solve: says The initial speed of the station wagon is says The initial speed of the pickup truck is 8.60. Set Up: After the collision the ornament moves in an arc of a circle and has acceleration The free-body diagram for the ornament plus missile is given in Figure 8.60. Take to be upward, since that is the direction of the acceleration. Take the direction to be the initial direction of motion of the missile. Figure 8.60 Solve: Apply conservation of momentum to the collision. gives and is the speed of the ornament immediately after the collision. Then gives T 5 m tot 1 g 1 v 2 r 2 5 1
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Unformatted text preview: 8.00 kg 2 1 9.80 m / s 2 1 3 4.50 m / s 4 2 1.50 m 2 5 186 N T 2 m tot g 5 m tot v 2 r . g F y 5 ma y V 5 4.50 m / s 1 3.00 kg 21 12.0 m / s 2 5 1 8.00 kg 2 V , P i, x 5 P f, x T x y m tot g a rad v 1 x 1 y a rad 5 v 2 r . 24.5 m / s. v i, B 5 1 m A 1 m B 2 v f cos 37.0° m B 5 1 2300 kg 900 kg 2 1 12.0 m / s 2 cos 37.0° 5 24.5 m / s m B v i, B 5 1 m A 1 m B 2 v f cos 37.0°. P i, y 5 P f, y 11.9 m / s. v i, A 5 1 m A 1 m B 2 v f sin 37.0° m A 5 1 2300 kg 1400 kg 2 1 12.0 m / s 2 sin 37.0° 5 11.9 m / s m A v i, A 5 1 m A 1 m B 2 v f sin 37.0°. P i, x 5 P f, x y x y x v A ,i v B ,i v f B A A 1 B 37 ° Before After v f 5 12.0 m / s m B 5 900 kg. m A 5 1400 kg, 1 y 1 x F av, x 5 P f, x D t 5 1 120 21 0.0100 kg 21 600 m / s 2 60.0 s 5 12.0 N. F av, x D t 5 P f, x 2 P i, x . P i, x 5 0. 1 x 8-16 Chapter 8...
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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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