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282_Physics ProblemsTechnical Physics

282_Physics ProblemsTechnical Physics - 284 Linear Momentum...

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284 Linear Momentum and Collisions P9.36 (a) 2 v i ; 2 3 v i ; (b) 35.3 ° (c) v v v 1 1 2 1 2 1 2 1 2 2 2 f m m m m m m m = + F H G I K J + + F H G I K J ; v v v 2 1 1 2 1 2 1 1 2 2 2 f m m m m m m m = + F H G I K J + + F H G I K J P9.38 0 1 00 , . m a f P9.40 4 67 10 6 . × m from the Earth’s center P9.56 291 N P9.42 (a) see the solution; (b) 3 57 10 8 . × J P9.58 M m m gd h + F H G I K J 2 2 P9.44 0 063 5 . L P9.60 (a) 0 667 . m s; (b) 0.952 m P9.46 (a) see the solution; (b) 2 00 1 00 . , . m m a f ; P9.62 (a) 6 81 . m s; (b) 1.00 m (c) 3 00 1 00 . ± . ± i j e j m s ; P9.64 (a) 3 54 . m s; (b) 1.77 m; (c) 35.4 kN; (d) 15 0 5 00 . ± . ± i j e j kg m s (d) No. The rails exert a vertical force to change the momentum P9.48 (a) 0 780 . ± i m s ; 1 12 . ± i m s; (b)
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