Acceleration Tutorial Homework:
Individually:
1. Do #1-5 in your book and bring with you to class.
Group:
1. Have each member of the group share their answers #2a, b, c. In this first part of
the process, don’t ask questions or offer ideas. Just let everyone share.
2. Come to a consensus on the best answers for your group. Record the answer for
2b below.
x vs. t
v vs. t
a vs t
3. Let’s consider a method (comparing representations) for checking your answer.
Draw diagrams similar to #1 on a piece of butcher paper. Make up values for each
x and t to fit the situation shown in the pictures. Now draw an x vs. t graph using
these values.
How does this compare to the group’s x vs. t graph above?
4. Find a reference in the text for reading velocity off an x vs. t graph. Write a
statement that includes a quote and cite it as you might in a lab report theory
section.
5. Using the information you noted in 4 above, use your x vs. t graph to get what
you need to plot a v vs. t graph. Compare this to your group’s answer above.
6. How does one read acceleration off a v vs. t graph? Write a statement that
includes a quote from your text and cite it as you might in a lab report theory
section.
Phy 101: Group Tutorial HW: Accel
9/06
7. Revise your group’s answers if necessary and give answers for both 2a and 2b.
#2a: Coordinate system is positive down the track.
x vs. t
v vs. t
a vs t
#2b: Coordinate system is positive up the track.
x vs. t
v vs. t
a vs t
8. From problem #4 pg 14: Show vectors for vai, vaf, vbi, and vaf. Then Use the
methods indicated to find Δva and Δvb.
vai
Use the method of plugging in
#s.
Cart A
Use the method of vector
subtraction: vf-vi. (optional)
Cart A
Cart B
Cart B
vaf
vbi
vaf
9. Give some ways that you might check your work in #5 by comparing
representations. Give your group’s best answer for #5b.
Phy 101: Group Tutorial HW: Accel
9/06