PASCO ME-6825A MINI LAUNCHER - Manual (Page 26)

Mini Launcher 012-05479B
®
24
Trial Number Distance
1
2
3
4
5
6
7
8
9
10
Average
Total Distance
PART I: Determining the Initial Velocity of the Ball
(without photogates)
➀
Put the steel ball into the Mini Launcher and cock it to the chosen range position. Fire
one shot to locate where the ball hits the floor. At this position, tape a piece of white pa-
per to the floor. Place a piece of carbon paper (carbon-side down) on top of this paper
and tape it down. When the ball hits the floor, it will leave a mark on the white paper.
➁
Fire about ten shots.
➂
Measure the vertical distance from the bottom of the ball as it leaves the barrel (this posi-
tion is marked on the side of the barrel) to the floor. Record this distance in Table 5.1.
➃
Use a plumb bob to find the point on the floor that is directly beneath the release point on
the barrel. Measure the horizontal distance along the floor from the release point to the
leading edge of the paper. Record in Table 5.1.
➄
Measure from the leading edge of the paper to each of the ten dots and record these dis-
tances in Table 5.1.
➅
Find the average of the ten distances and record in Table 5.1.
➆
Using the vertical distance and the average horizontal distance, calculate the time of
flight and the initial velocity of the ball. Record in Table 5.1.
Table 5.1 Determining the Initial Velocity without Photogates
Vertical distance = ______________ Calculated time of flight= ____________
Horizontal distance to paper edge = ____________ Initial velocity = ______________