PHYS_2014_Lecture_8

# PHYS_2014_Lecture_8 - Fall 2010 Oklahoma State University PHYS2014 Benton Lecture 8 Slide 1 About Exam No 1 Tuesday 21 September 2010 5:30 – 7:00

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Unformatted text preview: Fall 2010 Oklahoma State University PHYS2014: Benton Lecture 8, Slide 1 About Exam No. 1 Tuesday, 21 September 2010, 5:30 – 7:00 pm The class will be divided into three groups based on their recitation TA. Each group will take the exam in a different room as shown in the table below. Please go directly to your designated room. Recitation Section TA Exam Room 1, 2, 3, 19, 20, 21, 22, 23, 24 Ayon Patra PS-110 4, 5, 6, 7, 8, 9, 16, 17, 18, Ben Grossman PS-103 10, 11, 12, 13, 14, 15, 25, 26, 27, 28, 29, 30 Razvan Stoian PS-141 Fall 2010 Oklahoma State University PHYS2014: Benton Lecture 8, Slide 2 • Exam will consist of 4 to 5 problems of similar form to those from the homework. • The exam is designed so that it can be easily completed within one hour. • Books, math tables, other written materials, and scratch paper are not permitted. • Each Student will be provided with a calculator to use during the exam. The calculator is to be returned when you hand in your exam. • All work must be done directly on the exam paper provided. Show your work for full credit. • The Tuesday morning lecture will be a review in preparation for the exam. • No make-up exams will be given. About Exam No. 1 Fall 2010 Oklahoma State University PHYS2014: Benton Lecture 8, Slide 3 a g F a N F a Push F a f F Here’s where the problem lies. Lecture 8: Friction Why does this guy have to push so hard to move this box? Fall 2010 Oklahoma State University PHYS2014: Benton Lecture 8, Slide 4 The coefficient of friction is different in the dynamic case ( μ k ) and in the static case ( μ s ). We quantify friction in terms of the coefficient of friction, μ . The force due to friction is μ multiplied by the magnitude of the normal force. ˆ = a f N F F i μ a g F a N F a Push F ˆ N F i μ Fall 2010 Oklahoma State University PHYS2014: Benton Lecture 8, Slide 5 In the static case, the object remains at rest, even if we are pushing (or pulling on) it, so long as...
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## This note was uploaded on 11/28/2011 for the course PSYCH 2014 taught by Professor Staff during the Fall '10 term at Oklahoma State.

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PHYS_2014_Lecture_8 - Fall 2010 Oklahoma State University PHYS2014 Benton Lecture 8 Slide 1 About Exam No 1 Tuesday 21 September 2010 5:30 – 7:00

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