Vertical and horizontal motion in free fall.
PIRA: Unknown
Shoot a ball horizontally and at the same time drop another ball vertically from the same height. The horizontally-launched ball falls and hits the ground at the same time as the dropped ball. This demonstrates that in free fall, the vertical motion is independent of the horizontal motion.
Equipment | Storage |
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Spring apparatus that shoots one steel ball horizontally at the same time that it drops a second steel ball. In a commercial catalog | 021-12D |
this apparatus is referred to as "second law of motion apparatus". | Ring stands in SW 017 |
Clamp and stand. |