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# rev4sp10 - TA Tomoyuki Nakayama February 1st February 2nd...

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TA: Tomoyuki Nakayama February 1 st – February 2 nd , 2010 PHY 2048: Physics 1 with Calculus, Spring 2010 Review: Chapter 5.1- 6.5 The purpose of this review is to refresh your memory. Physics is a cumulative subject, so make it sure that you understand basic concepts and typical problem solving techniques in previous chapters before moving on to a new chapter. ________________________________________________________________________________ A. Application of Newton’s Laws 1. Two forces are exerted on a block of mass m. One of the forces F 1 is along +x direction. The block accelerates in the +y direction. a) Without any calculation, find which quadrant the 2 nd force is in. b) Express F 2 in unit-vector notation. 2. A block with mass m is sliding down a frictionless slope of θ. Find the acceleration of the block and the normal force exerted on the block. 3. Two blocks are connected by a string with a negligible mass. The surface is frictionless. a) Choose a coordinate system for each block so that you can express the accelerations of two blocks as a common acceleration. b) What are the acceleration and the tension?

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rev4sp10 - TA Tomoyuki Nakayama February 1st February 2nd...

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