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Problem #: 2006B2

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by

Lauren Russell

on 6 October 2015

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Transcript of Problem #: 2006B2

Word Problem
A world-class runner can complete a 100 m dash in about 10s. Past studies have shown the runners in such a race accelerate uniformly for a time
t
and then run at constant speed for the remainder of the race. A world-class runner is visiting your physics class. you are to develop a procedure that will allow you to determine the uniform acceleration
a
and an approximate value of
t
for the runner in a 100 m dash. By necessity your experiment will be done on a straight track and include your whole class of eleven students.
Materials needed for experiments
Stopwatches
Tape measures
Starter's pistol
Step #1
Set up a table of the runner's names and how long it takes them to run 100 meters.
Chart needed to track results in conducted experiment
Step #2
Lay out the measuring tape to equal the length of 100 meters.
Step #3
Shoot the starter pistol and began to time each runner individually, to get the correct times for each one.
Step #4
After getting all the times for each runner, divide each time t by the distance of 100 meters, to find the rate of velocity. Then divide the change in velocity by time again to find
a
Uniform Acceleration
Uniform acceleration will occur during the whole race-- with the hope that every runner runs at a constant rate of velocity.
You would calculate this by dividing the time by the distance traveled, or
t
/100m.
Problem #: 2006B2
Prezi by: Markus Smith, Charles Sornia, Alondra Velazco, and Lauren Russell
Full transcript