You can have students do an amazing analysis of balls thrown or kicked between students with this simple and totally inexpensive lab. All you need are balls of any kind (football examples are given, so they are nice), stopwatches to calculate hang time (nearly all phones have stopwatches, so students can provide this item), and calculators. Formulas are given in the lab as students go along, and they'll be able to calculate horizontal velocity, vertical velocity, total velocity, and angle of launch from just horizontal distance and hang time. Analysis & practice questions are included, as well as teacher notes & answers to questions. CHEAP BUT GREAT LAB!