128_Physics ProblemsTechnical Physics

128_Physics ProblemsTechnical Physics - 130 *P5.30 The Laws...

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130 The Laws of Motion *P5.30 Both blocks move with acceleration a mm g = + F H G I K J 21 : a = + F H G I K J = 72 98 544 kg kg 7 kg 2 kg ms 22 .. . (a) Take the upward direction as positive for m 1 . vv a x x x x x xf xi x f i f f f 2 2 20 2 4 2 5 4 4 0 576 2544 0529 =+ = + =− = di bg ej :. . . . . . m m below its initial level 2 (b) vva t v v xf xi x xf xf = + = . . . 240 180 740 s ms upward 2 af P5.31 Forces acting on 2.00 kg block: Tm gm a = 11 (1) Forces acting on 8.00 kg block: FTm a x = 2 (2) (a) Eliminate T and solve for a : a Fm g x = + 1 12 aF m g
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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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