Texas Instruments TITANIUM TI-89 User Manual
Page 95

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95
3. Define the vertical component
yt1(t) = v
0
t sin q N (g/2)t
2
.
Enter values for v
0
, q, and g.
Press
¸ 15T p 2 W 60 2 “ d
| c 9.8 e 2 d T Z 2 ¸
4. Display the
Window Editor
. Enter
Window variables appropriate for
this example.
You can press either
D or ¸ to enter
a value and move to the next variable.
Press
8 $ 0 D 3 D .02 D ? 2
D 25 D 5 D ? 2 D 10 D 5
5. Graph the parametric equations to model
the path of the ball.
Press
8 %
6. Select
Trace
. Then move the cursor
along the path to find the:
•
y value at maximum height.
•
t value where the ball hits the
ground.
Press
… B
or
A
as necessary
Steps and keystrokes
Display