tutorial sheet 5 - PAP111/PHYS1A Claus-Dieter Ohl Tutorial...

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PAP111/PHYS1A Tutorial Sheet 5 29 th of September 2010 Claus-Dieter Ohl 1 Before you start calculating the forces acting on objects split the problem into simple parts. Draw the free body diagram of each object and number the forces and tensions individually. Once you have sufficient number of equations (one for each unknown) you can start solving them. For question 2 for example it helps to start with the simple free body diagrams, then question 2 becomes chicken feed ( that’s what Prof Huan usually says), a piece of cake, or as I was told by my profs: kinderleicht :) 1) Pulling hard: You repeat the experiment Chon U did in the lecture but now with two masses. The upper mass is connected to a rigid wall. The same type of massless string is used to connect mass m 1 with mass m 2 and the one you use to pull downwards. a) Consider you use a constant force F , which of the strings will break first? Argue using a free body diagram. b) You repeat the experiment and pull now very fast. Which of
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This note was uploaded on 12/08/2010 for the course SPMS pap111 taught by Professor Claus-dieterohl during the Fall '10 term at Nanyang Technological University.

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tutorial sheet 5 - PAP111/PHYS1A Claus-Dieter Ohl Tutorial...

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