8ms2 practiceproblem practiceproblem

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Unformatted text preview: constant acceleration situation. Acceleration due to gravity = ­9.8m/s2 Practice Problem: Practice Problem: A rock is dropped from the top of a cliff. It takes 5 seconds to hit bottom. How high is the cliff? Practice Problem Practice Problem A bottle is dropped from a 100 meter building. How fast is it going when it hits the ground? Wile E Coyote slips and falls off a cliff. He hits the bottom with a velocity of ­30 m/s. How high was the cliff? Picket fence freefall lab Picket fence freefall lab Problem: to measure the acceleration due to gravity to .5% precision. Precision vs Accuracy Precision vs Accuracy Uncertainty: (Max­Min)/2 Precision: uncertainty/average x 100 Accuracy: Error %= measured – actual x 100 actual Synthesis Synthesis I own/I don’t understand Out: What do you need to remember about freefall?...
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This note was uploaded on 11/18/2011 for the course PHYS 121 taught by Professor Burgeson during the Fall '11 term at BYU.

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