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Analysis
Plot
the data for individual riders in the manner suggested and obtain
the related velocity and acceleration curves. What can be said about the
reliability of the derived quantities - velocity and acceleration - as compared
to the measured quantities - position and time? Does plotting a trendline
through the data and taking the slope of this line alter the estimated velocities?
How does using a trendline through the velocity data effect the acceleration
estimates?
Measure the area under the velocity-time curve. This
gives the total distance travelled between the start and finish points. Does
this area agree with the measured length of the course? If not, where is
the source of error and how large is it?
Measure the area under the
acceleration-time curve. This gives the velocity change between the start and
the finish. Does this agree with the measured final velocity if the bike was
initially at rest? If not, where is the source of error and how large is
it?
Use the acceleration data and the mass of the bicycle-rider system
being considered to estimate the force acting on the system as a function of
time. Identify some of these forces. How does the force due to air resistance
influence your data? |
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