KINE 426 Lab 2

KINE 426 Lab 2 - Tennis Serve PURPOSE: Tennis is popular as...

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Tennis Serve PURPOSE: Tennis is popular as both a competitive and recreational sport for people of all ages. By determining and quantifying linear velocities of two tennis balls immediately after being served by each of two players of different heights can help coaches and students perfect the sport of tennis. Our hypothesis is that the taller tennis player will serve the ball and have greater velocity than the shorter tennis player. The rationale behind this is that longer arm length due to height will create a greater velocity of the tennis ball. METHODS: Using two volunteers of different heights, record them hitting three tennis serves each. Once you are finished you will need to use the recordings to analyze the two volunteers and their serves. Be sure to record the length of each volunteer’s serving arm. Using the Image J program on the computer, record x and y coordinates, distance, etc. so that you can use them in your calculations for velocity with each volunteer. Find the actual distance traveled by the ball using the Pythagorean Theorem (a 2 +b 2 =c 2 ). In order to measure the difference in distance of each ball, use the program Dartfish on the computer. Mark where the
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This note was uploaded on 03/26/2008 for the course KINE 426 taught by Professor Lawler during the Fall '07 term at Texas A&M.

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KINE 426 Lab 2 - Tennis Serve PURPOSE: Tennis is popular as...

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