At the Instant a 2

Multiple Choice

At the instant a 2.0-kg particle has a velocity of 4.0 m/s in the positive x direction, a 3.0-kg particle has a velocity of 5.0 m/s in the positive y direction. What is the speed of the center of mass of the two-particle system?

A) 3.8 m/s
B) 3.4 m/s
C) 5.0 m/s
D) 4.4 m/s
E) 4.6 m/s