This simple but effective apparatus demonstrates that two projectiles launched at the same time, but with different trajectories, will hit the ground at the same time due to the force of gravity. In this case, one steel sphere is launched horizontally from a spring-loaded L-shaped arm at the same time as an identical steel sphere is allowed to fall freely from the same height, but vertically. Both spheres will hit the ground at the same time. Launching mechanism is mounted on a wooden block, which can be clamped to a bench top, and comes complete with 2 steel spheres. The wooden block also incorporates an integral storage pocket for the spheres.
Dimensions: 180 x 60 x 30 mm.