4. Calculation of net torque The body in the figure below is pivoted at O, and two forces act on it as shown. If r₁=1.30 m, r₂ =2.15 m, F₁ =4.20 N, F₂ =4.90 N, 0₁ =75.0°, and 0₂ =60.0°, what is the net torque about the pivot? F 12
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