88_Physics ProblemsTechnical Physics

88_Physics ProblemsTechnical Physics - Chapter 4 af (a) x f...

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Chapter 4 89 P4.17 (a) xv t fx i == ° = 800 200 300 226 .c o s. . . a f m (b) Taking y positive downwards, yv t g t y fy i f =+ + = 1 2 1 2 9 80 3 00 52 3 2 2 .s i n. . . . . . afaf af m (c) 10 0 8 00 20 0 1 2 980 2 .. s i n . . + a f tt 4 90 2 74 10 0 0 2 74 2 74 196 118 2 2 ... . . t +− = = −± + = s *P4.18 We interpret the problem to mean that the displacement from fish to bug is 2.00 m at 30 2 00 30 2 00 30 1 73 1 00 °= ° + ° = + . ± . ± . ± . ± mcos ms in m m a f a f a f a f ij i j . If the water should drop 0.03 m during its flight, then the fish must aim at a point 0.03 m above the bug. The initial velocity of the water then is directed through the point with displacement 173 103 2015 . ± . ± . m m m a f a f += at 30.7 ° . For the time of flight of a water drop we have
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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