User's Manual

Mini Launcher 012-05479B

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

for all the data points and record in Table 4.1.

➂ Plot y vs. x

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.