A 1.13 kg particle-like object moves in a plane with velocity components vx = 60.1 m/s and vy = 64.6 m/s as it passes through the point with (x, y) coordinates of (9.34, -5.10) m. Just then, in unit-vector notation, what is its angular momentum relative to (a) the origin and (b) the point (-4.85, -4.85) m?