A 3.0 kg particle wiith velocity v=(5.0 m/s)i - (6.0 m/s)j is at x = 3.0 m, y=8.0 m. It is pulled by a 7.0 N force in the negative x direction. a.) What is the angular momentum of the particle about the origin? b.) What torque about the origin acts on the particle? c.) At what rate is the angular momentum of the particle changing?