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EL-9600/9400 Graphing Calculator
Calculating Tension
Use the law of sines to find the tension when a pole of weight W is suspended with
two strings, and the strings are balanced with the angles from the vertical line A and B.
Calculation
FLOWCHART
PARAMETERS
PROGRAMME LIST
(REAL MODE)
Calculation of tensions
Display of tensions
Calculation of denominator
Entry
Start
Enter angles and weight
A, B and W.
Denominator in law of sines
calculated. C= sin (A + B)
Tensions T and S displayed.
Tensions T and S calculated.
T = W sin B/C
T = W sin A/C
Name of parameter
A
B
C
Content
angle A
angle B
sin(A+B)
Name of parameter
S
T
W
Content
tension S
tension T
weight
T
sin B
=
S
sin A
=
W
sin (A+B)
sin B
sin (A+B)
T = W
sin A
sin (A+B)
S = W
T, S : tension W : weight
A, B : angles (6 sexagesimal numbers)
A
B
S
W
T
A
vertical line
T
G
S
W
B
Print "Input ANGLE
Input A
Input B
Print "Input WEIGHT
Input W
sin (A+B) C
W sin B/C T
W sin A/C S
Print "TENSION
Print "T=
Print T
Print "S=
Print S
End
Title : TENSION
2
HB2.Doc02. 98.10.1, 0:23 PM2