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2 Two horizontal forces act on a 2.0 kg chopping block that can t slide over a frictionless kitchen counter, which lies in an xy plane. w One force is F (30Ni (4.0 N)j. Find the acceleration of the t chopping block in unit-vector notation when the other force is (a) 尼티-30 N )i + ㈠.0 Nj. (b) F2 = (-3,0 N). + (4.0 N).. and (c) F2 = (3,0 N)i + (-4.0 N )j


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