PASCO ME-6825A MINI LAUNCHER - Manual (Page 22)

Mini Launcher 012-05479B
®
20
Horizontal (x) Height (y)
(carbon side down) over the white paper.
Procedure
➀
Measure the vertical height from the floor to the muzzle and record in Table 4.1. Mark
this height on the target.
➁
Measure the horizontal distance from the muzzle of the Mini Launcher to the target and
record in Table 4.1.
➂
Shoot the ball.
➃
Move the target about 5 cm closer to the Launcher.
➄
Repeat Steps 2 through 4 until the ball strikes the target about 10 cm below the muzzle
height.
Table 4.1 Data
Height of Muzzle = _____________
Analysis
➀
On the target, measure the vertical distances from the muzzle level mark down to the ball
marks and record in Table 4.1.
➁
Calculate x 2 for all the data points and record in Table 4.1.
➂
Plot y vs. x 2 and draw the best-fit straight line.
➃
Calculate the slope of the graph and record in Table 4.2.
➄
From the slope of the graph, calculate the initial speed of the ball as it leaves the muzzle
and record in Table 4.2.
➅
Using any data point for x and y, calculate the time using y and then calculate the initial
speed using this time and x. Record the results in Table 4.2.
➆
Calculate the percent difference between the initial speeds found using these two meth-
ods. Record in Table 4.2.
x
2