MP41- Work and Kinetic Energy

MP41- Work and Kinetic Energy - MasteringPhysics:...

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4/28/08 3:02 PM MasteringPhysics: Assignment Print View Page 1 of 3 http://session.masteringphysics.com/myct/assignmentPrint?assignmentID=1114163 [ Print View ] PHYS 2211 ABCDE Spring 08 MP41: Work and Kinetic Energy Due at 11:59pm on Thursday, March 27, 2008 View Grading Details Understanding Work and Kinetic Energy Learning Goal: To learn about the Work-Energy Theorem and its basic applications. In this problem, you will learn about the relationship between the work done on an object and the kinetic energy of that object. The kinetic energy of an object of mass moving at a speed is defined as . It seems reasonable to say that the speed of an object--and, therefore, its kinetic energy--can be changed by performing work on the object. In this problem, we will explore the mathematical relationship between the work done on an object and the change in the kinetic energy of that object. First, let us consider a sled of mass being pulled by a constant, horizontal force of magnitude along a rough , horizontal surface. The sled is speeding up. Part A How many forces are acting on the sled? ANSWER:
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MP41- Work and Kinetic Energy - MasteringPhysics:...

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