Answer:
45 degree east of south
Step-by-step explanation:
If we add the east-bound force vector by player A and the south-bound force vector by the teammate of player A, the resultant force would point in the south-east direction and likely to generate acceleration on B, which in turn causes motion.
Since the 2 original forces are equal in magnitude, the resultant force would be directly half way between them, so 45 degree east of south.