A 2.0-kg ball attached to a string whose length is 1.5m movescounterclockwise (as viewed from above) in a horizontalcircle. The string makes an angle θ= 30o withthe vertical. (a) Determine both the horizontal and vertical components of the angular momentum L of the ball about the point ofsupport. (b) Find the magnitude of dL/dt and verify that itequals the magnitude of the torque exerted by gravity about the point of support.