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Casio fx-9860G SD User Manual

Page 235

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20050401

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Example

The path over time T of a ball thrown in the air at initial velocity V and
an angle of

θ degrees from horizontal can be calculated as follows.

X = (Vcos

θ)T, Y = (Vsin θ)T – (1/2)gT

2

(g = 9.8m/s

2

)

Use Dynamic Graph to plot the path of a ball thrown at an initial
velocity of 20 meters per second, at horizontal angles of 30, 45, and 60
degrees (Angle: Deg).

Use the following V-Window settings.

Xmin = –1,

Xmax = 42,

Xscale = 5

Ymin = –1,

Ymax = 16,

Yscale = 2

T

θmin = 0,

T

θmax = 6,

T

θ ptch = 0.1

Procedure

1

m DYNA

2

!3(V-WIN) -bwecwfwc

-bwbgwcw

a

wgwa.bwJ

3

!m(SET UP)2(Stop)

cccccc1(Deg)J

4

3(TYPE)3(Parm)

(ca

cav(A))vw

(ca

sav(A))v-e.jvxw

5

4(VAR)

6

2(SET)dawgawbfwJ

7

3(SPEED)3( )J

8

6(DYNA)

Result Screen

···

←···

5-8-6

Dynamic Graphing