MP44 Work and Force - [ Print View ] ourse PHYS2211FALL07...

MP44 Work and Force
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Unformatted text preview: [ Print View ] ourse PHYS2211FALL07 P44: Work and Force ue at 11:59pm on Thursday, November 8, 2007 View Grading Details Work from a Constant Force Learning Goal: To understand how to compute the work done by a constant force acting on a particle that moves in a straight line. In this problem, you will calculate the work done by a constant force. A force is considered constant if is independent of . This is the most frequently encountered situation in elementary Newtonian mechanics. Part A Consider a particle moving in a straight line from initial point B to final point A, acted upon by a constant force . The force (think of it as a field, having a magnitude and direction at every position ) is indicated by a series of identical vectors pointing to the left, parallel to the horizontal axis. The vectors are all identical only because the force is constant along the path. The magnitude of the force is , and the displacement vector from point B to point A is (of magnitude , making and angle (radians) with the positive x axis). Find axis)....
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