HP 33S - Page 113

Solving Equations
7–3
File name 33s-E-Manual-1008-Publication(1st).doc Page : 386
Printed Date : 2003/10/8 Size : 13.7 x 21.2 cm
and displays the left end.
º Î


Checksum end length.
g (acceleration due to gravity) is included as a variable so you can change it for
different units (9.8 m/s
2
or 32.2 ft/s
2
).
Calculate how many meters an object falls in 5 seconds, starting from rest. Since
Equation mode is turned on and the desired equation is turn on and the desired is
already in the display, you can start solving for D:
Keys: Display: Description:
Û

_

Prompts for unknown
variable.
D

value

Selects D; prompts for V.
0
¥

value

Stores 0 in V; prompts for
T.
5
¥

value

Stores 5 in T; prompts for
G.
9.8
¥



Stores 9.8 in G; solves
for D.
Try another calculation using the same equation: how long does it take an object
to fall 500 meters from rest
?
Keys: Display: Description:
º d

Displays the equation.
Û
T


Solves for T; prompts for
D.
500
¥


Stores 500 in D; prompts
for V.
¥


Retains 0 in V; prompts
for G.
¥



Retains 9.8 in G; solves
for T.