Heres the problem: An 8.00 kg mass moving east at 14.8 m/s on a frictionless horizontal surface collides with a 10.0 kg object that is initially at rest. After the collision, the 8.00 kg object moves south at 3.70 m/s. a. what is the velocity of the 10.0 kb object after the collision? magnitude:____ m/s direction: ____ (degrees) b. what percentage of the initial kinetic energy is lost in the collision? thanks guys!