SOLUTION: Find the work done by the constant force 4i - 2j if the point of application moves along the line segment from P(1,1) to Q(5,7).

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Question 70996: Find the work done by the constant force 4i - 2j if the point of application moves along the line segment from P(1,1) to Q(5,7).
Answer by venugopalramana(3286) About Me  (Show Source):
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Find the work done by the constant force 4i - 2j if the point of application moves along the line segment from P(1,1) to Q(5,7).
W =F.DS
F=4I-2J
DS= (5-1)I+(7-1)J=4I+6J
F.DS = 16-12=4