Initially, the Light Puck Is Moving West At $4 \mathrm{~m} / \mathrm{s}$

Multiple Choice

Initially, the light puck is moving west at $4 \mathrm{~m} / \mathrm{s}$ while the heavy puck is moving south at $2 \mathrm{~m} / \mathrm{s}$ . The final velocity of the conjoined pucks is

A) West.
B) South.
C) Southwest.
D) Zero.
E) Some other direction (explain) .