Texas Instruments TITANIUM TI-89 - Manual (Page 95)

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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