PHYSICS.....

A car of mass 2500 kg and moving at 3 m/s, northeast collides with a 3800 kg car moving northwest at 2.5 m/s. Find their velocity, assuming that the collision is perfectly inelastic. Ball A rolls off at a speed of 1.2 m/s, east and strikes a second stationary ball B. Ball B is twice as massive as ball A. If after the collision, ball A is observed to be traveling north at a speed of 0.4 m/s, find the velocity of ball B after collision. m The block of a ballistic pendulum has a mass of 1.25 kg and is initially at rest. A bullet of mass 25 g traveling at 75 m/s strikes the block and becomes embedded in it. (a) What is the velocity of the bullet-block system just after impact? (b) How high will the system rise