Texas Instruments TI-89 Manual Book page 418

Hint: Press 2 a.
Hint: Press ¥ &.
Hint: Press ¥ '.
Note: As you move the
trace cursor from tc=0.0 to
tc=3.1 , you will see the
position of the ball at time tc .
Optional Exercise
5. Set the Window variables to:
t values= [0,4,.1]
x values= [0,300,50]
y values= [0,100,10]
6. Switch to the right side and
display the graph.
7. Display the TABLE SETUP
dialog box, and change
and @
to to .
0 tbl 0.1
8. Display the table in the left
side and press D to highlight
.
t=2
9. Switch to the right side. Press
..., and trace the graph to
show the values of
when .
tc=2
Assuming the same initial velocity of 95 feet per second, find the
angle that the ball should be hit to achieve the greatest distance.
tblStart
and
xc yc
Chapter 23: Activities 401