Speed/velocity is the total distance traveled times the time it took to move.
Speed is measured in many different units, like M/ph, and Km/ph.
In tennis, speed is measured during the serve, and returning hits.
D=MV
Review Questions:
1. If the tennis ball travels 20 meters in 5 seconds, what is the speed it travels? A: 4m/s 2. What other sports involve speed/velocity? A: baseball, basketball, ect.