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posted by Ashley Friday, March 23, 2012 at 5:50pm.
Find the power of a force F= (10 N)ˆý +(−4 N)ˆj if the velocity v = (−4 m/s)ˆý +(4 m/s)ˆj. Answer in units of W (^i and ^j means i hat and j hat)
F dot v = -40 -16 = -56 Watts
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