Ballistics Car

This Ballistics Car demonstrates that the horizontal component of velocity of a body thrown vertically upward from another body moving horizontally is the same as the horizontal motion and independent of the vertical component. The car ejects a steel ball from its vertical barrel, and as the car moves with uniform velocity, the ball returns to its original position in the barrel. The apparatus consists of a heavy metallic barrel mounted vertically on an aluminum car with plastic ball-bearing wheels to minimize friction. A spring-loaded piston with two compression settings ejects the ball to two different heights. Includes a steel ball and lock pin with cord. Detailed instructions included. Suitable for physics classroom demonstrations of projectile motion and reference frames.