An ice skater in a red jacket is skating south when they collide with, and hold onto, a second skater in a blue jacket who is

Question

An ice skater in a red jacket is skating south when they collide with, and hold onto, a second skater in a blue jacket who is traveling due east. Just prior to this collision, the person in the blue jacket had a speed of 5 m/s east and the person in the red jacket had a speed of 10 m/s to the south. What is the magnitude of the velocity of the two people immediately after the collision? The mass of skater in the blue jacket is 120 kg and the mass of the skater in the red jacket is 80 kg. 
A. 11 
B. 8
C. 7
D. 5
E. None of these answers is within 3% of the correct answer.

Kunduz · Accepted Answer

Click to see the answer