Exam2-practiceII

# Exam2-practiceII - Physics 211 Spring 2007 Exam 2 Practice...

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Phy211 Spring 2007 Syracuse University Exam 2 – practice II Page 1 Physics 211, Spring 2007 Exam 2 Practice II Document your work or earn no credit. Use the back of each sheet if you run out of space. Cross over any parts that correspond to given up thoughts. For numerical answers give at least 2 significant digits and specify units. Assume g=10 m/s 2 throughout this exam. cos30 o =0.866, sin30 o =0.500 1. A crate of mass m=4 kg is being pulled on leveled floor with the force of 8 Newtons using a cord inclined by θ =30 o with respect to the floor (see picture below). Coefficient of kinetic friction between the crate and the floor is μ k =0.1. Assume g=10 m/s 2 throughout this problem. (a) Draw and label all forces on the block. (b) Find magnitude of the acceleration of the block. θ cord

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Phy211 Spring 2007 Syracuse University Exam 2 – practice II Page 2 2. The crate from problem 1 moves 5 m forward. (Assume g=10 m/s 2 ) (a) Calculate work done by the frictional force. (b)
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Exam2-practiceII - Physics 211 Spring 2007 Exam 2 Practice...

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