PASCO ME-9859 Drop Shoot Accessory - Manual (Page 5)

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Model No. ME-9859 Drop Shoot Accessory
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5. Connect a photogate as shown to measure the initial speed of the
fired ball (optional). Since the photogate beam passes through the
center of the ball's path, the velocity of the ball is calculated by the
following equation:
6. Place the Time of Flight Accessory directly below the Drop Shoot
Bracket.
7. Hang a solid steel ball from the magnetic screw.
8. Looking through the back of the launcher, adjust the magnetic
screw until the "hanging ball" is centered on the sights.
9. Remove the "hanging ball."
10. Place a solid steel ball into the barrel and use the included loading
rod to depress the plunger to the first click.
11. Replace the "hanging ball".
12. If velocity data is being collected with a photogate, click the Start
button in DataStudio.
13. Pull the launch cord to release the balls.
14. Mark the position the "hanging ball" when it strikes the ground.
15. Click Stop in DataStudio to end data collection.
16. Position the Time of Flight Accessory such that the hanging ball
will strike it and repeat the launch procedure.
velocity = diameter of ball
"blocked time"