rev10f10 - TA Tomoyuki Nakayama Monday November 1 2010 PHY...

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TA: Tomoyuki Nakayama Monday, November 1, 2010 PHY 2048: Physics 1 with Calculus, Fall 2010 Review: Chapter 12.1-12.7 The purpose of this review is to refresh your memory. Physics is a cumulative subject, so make it sure you understand basic concepts and typical problem solving techniques in previous chapters before moving on to a new chapter! ________________________________________________________________________________ A. Rigid Bodies in Equilibrium A uniform ladder is 5 m long and weighs 200 N. The ladder leans against a vertical, frictionless wall at height 4 m. A horizontal force F is applied to the ladder at distance d = 1 m from the base. The base slips to the right if the force is larger than or equal to 250 N. Find the coefficient of static friction. B. Elasticity A horizontal aluminum rod 5 cm in diameter projects 10 cm from a wall. A 1000 kg object is suspended from the end of the rod. The shear modulus of aluminum is 3×10 10 N/m 2 . Neglecting the mass of the rod, find the vertical deflection of the rod.
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TA: Tomoyuki Nakayama Monday, November 1, 2010 PHY 2048: Physics 1 with Calculus, Fall 2010 Practice Exam Problems (Chapter 12.1-12.7)
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