9514 1404 393
Answer:
C 12 miles per hour in a southeasterly direction
Step-by-step explanation:
-v has a direction opposite to that of v. The opposite of northwest is southeast.
2(-v) means the magnitude of the opposite vector is multiplied by 2. 2 times 6 mph is 12 mph.
2(-v) is 12 mph in a southeasterly direction