homework3-solutions

homework3-solutions - ME 104 Homework 3 Solutions Andrew...

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Unformatted text preview: ME 104: Homework 3 Solutions Andrew Gray: University of California, Berkeley Chapter 12, Solution 4 ( a ) ( b ) Assume 2 32.2 ft/s g W m g : s W F ma W F a g 1 s a W F g or 14.1 4 1 1 32.2 s F W a g 16.10 lb W 2 7.4635 0.232 lb s /ft 32.2 W m g : s W F ma F W a g 1 4 16.10 1 32.2 s a F W g 18.10 lb s F For the balance system B , 0: w p M bF bF w p F F But 1 w w a F W g and 1 p p a F W g so that w p W W and 16.10 32.2 p w W m g 2 0.500 lb s /ft w m Chapter 12, Solution 9 Kinematics: Uniformly accelerated motion. ( 0, 0) x v 2 1 , 2 x x v t at or 2 2 2 2 (2)(5) 0.100 m/s (10) x a t 0: sin 50 cos 20 sin 50 cos 20 y F N P mg N P mg...
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This note was uploaded on 02/06/2010 for the course ME 104 taught by Professor Oreilly during the Fall '08 term at Berkeley.

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homework3-solutions - ME 104 Homework 3 Solutions Andrew...

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