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At time t = 0, a 4.0 kg particle with velocity v with arrow = (5.0...

At time t = 0, a 4.0 kg particle with velocity v with arrow = (5.0 m/s) i hat − (6.0 m/s) j is at x = 4.0 m, y = 2.0 m. It is pulled by a 6.0 N force in the negative x direction. (a) What is the angular momentum of the particle about the origin? (Express your answer in vector form.) (b) What torque about the origin acts on the particle? (Express your answer in vector form.) N · m (c) At what rate is the angular momentum of the particle changing?

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