On a very muddy football field, a 120 kg linebacker tackles an 80 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.8 m/s north and the halfback is sliding with a velocity of 7.3 m/s east.
A. What is the magnitude of the velocity at which the two players move together immediately after the collision?
B. What is the direction of this velocity?