PASCO ME-6800 Projectile Launcher (Short Range) User Manual
Page 42
P r o j e c t i l e L a u n c h e r
E x p . 1 0 ( D e m o ) : S h o o t i n g T h r o u g h H o o p s
®
38
012-05043G
2.
Calculate and record the horizontal and vertical positions of the ball each 1/10 second until the vertical posi-
tion is zero.
3.
Lay the two-meter stick on the floor in a straight line away from the Launcher. Remove the back mounting
screw from the Launcher base so that the back of the Launcher can rotate upward. Look through the Launcher
at the end of the two-meter stick. Adjust the end of the stick until the end is aligned with the sites in the
Launcher and the stick is along the path of the ball when it is fired.
4.
Starting at the muzzle of the Launcher, measure off each set of x and y distances and place a ring clamp on a
stand at each position corresponding to one-tenth of a second (see Figure 10.1).
5.
Shoot the ball through the rings.
6.
Ask the class: What shape of curve is formed by the rings? What is the path of the projectile?
Table 10.1: X- and y-positions
t (sec)
x = v
0
t (cm)
y = y
0
- (1/2)gt
2
(cm)
0.1
0.2
0.3
0.4
0.5
CA
UT
IO
N!
DO
N
OT
L
OO
K
DO
W
N B
AR
RE
L!
CA
UT
IO
N!
DO
N
OT
L
OO
K
DO
W
N B
AR
RE
L!
CA
UTIO
N!
DO
NO
T L
OO
K
DO
WN
TH
E B
AR
RE
L.
LO
NG
RA
NG
E
M
ED
IU
M
RA
NG
E
SH
OR
T
RA
NG
E
Po
siti
on
of B
all
La
un
ch
SHOR
T RANGE
PROJECTILE LAUNCHER
ME-6800
Ye
llow
B
and in W
indow
Indicates R
ange.
90
80
7
0
6
0
5
0
4
0
30
2
0
10
0
W
EA
R
SAFET
Y
GLAS
SE
S
W
HEN IN US
E.
U
s e
2
5 m
m
b a
l l s
O
N
LY
!
Figure 10.1: Demonstration setup