A 30 kg-m² object and a 70 kg-m² object have an angular collision. The graph below is for the 70 kg'm² object. Assume angular momentum is conserved and find the change in angular velocity of the 30 kg-m2 object over the entire time shown. Tret(N-m) 01 -40.0 -80.0 -120.0 2.0 4.0 6.0 t(s)

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