Model No. PS-2138
Experiment
17
!
Analysis
In this analysis, use units of
m/s/s
or
m/s
2
for acceleration,
rad/s
for
angular velocity, and
rad/s/s
or
rad/s
2
for angular acceleration.
Tangential Acceleration
1)
Look at graphs of
Angular Acceleration vs. Time
and
Tangential
Acceleration vs. Time
together.
*
How are the graphs related?
2)
Create a graph of
Tangential Acceleration vs. Angular Acceleration
and apply a linear fit.
*
What is the slope of the best-fit line (including
units)?
3)
Write the equation of the best fit line in terms of
a
T
,
α
and slope. Does
the relationship represented by the best-fit line support the prediction
that you made earlier?
4)
What physical quantity is represented by the slope? Measure this
quantity directly and compare it to the value of slope.
*Tangential
Acceleration is
measured by the
sensor as
“Acceleration, Y.”
*Plot Tangential
Acceleration on the
vertical axis and
Angular Acceleration
on the horizontal
axis.
