Product Number: SB23796
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This precision-machined car demonstrates that the forward component of a ball ejected vertically is the same as that of the car from which it is ejected. The car and its ball are both given a horizontal motion, the ball is given a vertical component of motion as well. The ball, despite its vertical movement, retains the same horizontal motion as the car and returns to it. Apparatus consists of a heavy-duty steel and aluminum car with vertical spring-loaded barrel, 10 cm H x 5 cm dia. Barrel contains two spring settings for two different ball heights, up to approximately 30 cm (12 in.). Molded plastic wheels feature hardened ball bearing for low friction and extreme sensitivity - car will roll on an incline as slight as 1°. Apparatus comes complete with 2.5 cm (1 in.) dia. steel ball, one lock pin with cord, and instructions.