97_Physics ProblemsTechnical Physics

97_Physics ProblemsTechnical Physics - 98 Motion in Two...

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98 Motion in Two Dimensions Section 4.6 Relative Velocity and Relative Acceleration P4.38 (a) va i j vi j ij j j i j j v HH 2 H J 2 J HJ H J HJ HJ +. . m s . s .. m s + . m s . s .+ . m s . . m s m s ms == =− = = =+ = 0 3 00 2 00 5 00 15 0 10 0 0 1 00 3 00 5 00 500 150 100 10 0 25 0 10 0 25 0 26 22 t t vv j ±± ±±±± (. ) (. ) ej af a f .9 m s (b) ra i j ri j j i j rr r i j i j j r 2 2 H J 2 HJ H J HJ HJ m s 5.00 s m m s 5.00s m .... m m m m =++ = = + =−= =+ = 00 1 2 1 2 300 200 37 5 25 0 1 2 1 00 3 00 12 5 37 5 37 5 25 0 12 5 37 5 25 0 62 5 25 0 62 5 67 3 2 2 t . ± . ± . ± . ± . ± . ± . (c) aa a i j i j ai j HJ H J 2 HJ 2 m s ±ms = 3 00 2 00 1 00 3 00 . ± . ± *P4.39 v ce = the velocity of the car relative to the earth. v wc = the velocity of the water relative to the car. v we = the velocity of the water relative to the earth. These velocities are related as shown in the diagram at the right.
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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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