beautypg.com

PASCO ME-6800 Projectile Launcher (Short Range) User Manual

Page 29

background image

®

M o d e l N o . M E - 6 8 0 0

E x p . 5 : C o n s e r v a t i o n o f E n e r g y

0 1 2 - 0 5 0 4 3 G

25

Data Table 5.1

Alternate Method for Determining the Initial Speed of the Ball (using photogates)

1.

Attach the photogate mounting bracket to the Launcher and attach two photogates to the bracket. Check that
the distance between the photogates is 0.10 m (10 cm).

2.

Plug the photogates into an interface or a timer.

3.

Adjust the angle of the Launcher to 90 degrees (straight up).

4.

Put a plastic ball in the Projectile Launcher and use the ramrod to cock it at the medium range setting.

5.

Setup the data acquisition software or the timer to measure the time between the ball blocking the two photo-
gates.

6.

Shoot the ball three times and calculate the average of these times. Record the data in the Table 5.2.

7.

Calculate the initial speed of the ball based on the 0.10 m distance between the photogates. Record the value.

Table 5.2

Table 5.1:

Item

Value

Item

Value

Vertical distance

Calculated time of flight

Horizontal distance to edge of paper

Initial speed

Trial

Distance

Trial

Distance

1

6

2

7

3

8

4

9

5

10

Average

Total distance

Table 5.2: Initial Speed Using Photogates

Trial

Time

1

2

3

Average Time

Initial Speed

This manual is related to the following products: