Homework5-F08

Homework5-F08 - Homework 5 Chapt 7 Atwood machine Part H If...

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Homework 5 Chapt. 7 Atwood machine Part H, If m1 , and m2 remains finite, what value does the magnitude of the tension approach. After you made the free-body diagrams for m1 and m2 You can get 1 1 (1) T m g m a - = 2 2 (2) T m g m a - = - (1) – (2) 2 1 2 1 2 1 2 1 m m m g m g m a m a a g m m - - = + = + 2 1 1 1 1 1 2 2 2 1 2 1 (1 ) (2 ) 2 m m m T m g m a m g m g m g m m m m - = + = + = + + it is understandable 7.12 The tension should equal the person’s weight, T= W =60×9.8 = 588 N Block on an Incline Adjacent to a Wall Part A The magnitude, F het , of the sum of all forces acting on the block , F het =mgsin θ Part B The magnitude, F ww , of the force that the wall exerts on the wedge, F ww =Nsin θ =mgcos θ sin θ
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7.15. Block A’s acceleration is greater in case b. In case a, the hanging 10 N must accelerate both the mass of A and its own mass, leading to a smaller acceleration than case b, where the entire 10 N force accelerates the mass of block A. Case a
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This note was uploaded on 04/18/2010 for the course PHYS ? taught by Professor Zhou during the Spring '10 term at Georgia State.

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Homework5-F08 - Homework 5 Chapt 7 Atwood machine Part H If...

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