A 150.0 Kg block travels with speed of 10.0 km/h and another block of 100.0 Kg traveling at 5.0 km/h. as shown in the figure.
The blocks undergo an elastic collision.
A. The velocity of the center of mass after the collision is (in km/h):
B. After the collision. the velocity of 150.0 Kg mass measured from a reference traveling with the center of mass is (in km/h.)