Answer to Question #69745 in Electric Circuits for aya

Question #69745

: A force F = (30i – 40j) N is applied on an object, the object travels a displacement

S = (-9i-3j) m. Find the work done by the force on the object.

Expert's answer

W=F∙S = (30i-40j)∙(-9i-3j) = -270+120 = -150 J.

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