A 1220kg car traveling south at 24 m/s with respect to the ground collides with and attaches to a 2410kg delivery truck traveling east at 16 m/s.
PART A: Decide the direction of the velocity of the two vehicles when locked together just after the collision. Take east direction as zero angles.
PART B: Decide the magnitude of the velocity of the two vehicles when locked together just after the collision.