# How to ch2 - -Chapter 2, Problem 4 -The 1992 world speed...

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Sheet1 Page 1 --------------------- Chapter 2, Problem 4 --------------------- Answer 5.55 seconds How to solve ~~~~~~~~~~~~~~~ 1) Find Chris Huber's Meters traveled per second. 200 (meters) / 6.509 seconds = 30.72668613 meters/second 2) Convert 19.0 Kilometers per hour to meters per second. 19.0 Kilometers 1000 Meters 1 hour ----------------- x ------------- x -------------- = 5.277778 meters/second 1 Hour 1 Kilometer 3600 Seconds 3) Add Chris Huber's meters per second to step 2, This output will be Sam's meters per second. 30.72668613 meters/seconds + 5.27778 meters/seconds = 36.0044639 meters/second 4) Find how many seconds it took Sam to travel 200 meters. 36.0044639 meters 200 meters ------------------- = -------------- 1 second "x" seconds Answer x = 5.554866768 Seconds --------------------- Chapter 2, Problem 6 --------------------- Compute your average velocity in the following two cases: (a) You walk 56.6 m at a speed of 1.64 m/s and then run 56.6 m at a Answer (a) 2.326 meters/second Answer (b) 3.112 meters/second How to solve ~~~~~~~~~~~~~~ The 1992 world speed record for a bicycle (human powered vehicle) was set by Chris Huber. His time through the measured 2 0

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Sheet1 Page 2 Average Velocity **************** (Delta) x Displacement X (final) - X (inital) ----------- = -------------- = ------------------------ (Delta) t Time t (final) - t (inital) (Part A) 1) You must first calculate the total meters and total seconds traveled. To do this you must first find how many seconds it took to travel the givin distances. 56.6 meters 1.64 meters ------------- = ------------- => x = 34.51219512 seconds "x" Seconds 1 second 56.6 meters 4.00 meters ------------- = ------------- => x = 14.15 seconds "x" seconds 1 second 2) The total meters over the total seconds will give you the average velocity. Use the Average Velocity formula
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## This note was uploaded on 04/12/2008 for the course PHYSICS 150 taught by Professor Naik during the Winter '08 term at University of Michigan.

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How to ch2 - -Chapter 2, Problem 4 -The 1992 world speed...

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