AP Physics C

325 13. A 20.0 g marble moving at 10.0 m/s in the +x direction collides with a 40.0 g marble at rest. After the collision the 40.0 gram marble is moving at 1.25 m/s at an angle of 15.0 below the +x axis. Find the velocity of the 20.0 gram marble. (8 points) M m P 7