PASCO ME-6810 Time of Flight Accessory - Manual (Page 14)

Time of Flight Accessory Model No. ME-6810
14 ®
Experiment 3: Horizontal Velocity of a Projectile
Purpose:
The purpose is to show that the horizontal velocity of a projectile is
constant throughout its flight.
Theory:
For projectile motion, the horizontal and vertical motions are separate.
In the vertical direction, the projectile accelerates downward as gravity
pulls on it. But in the horizontal direction, there is no acceleration and
the component of the velocity in the horizontal direction is constant
(neglecting friction).
The horizontal velocity can be found by measuring the horizontal
distance and the time of flight (i.e. ).
Setup:
1. Clamp the Projectile
Launcher to one end of a
sturdy table with the
launcher aimed along the
length of the table.
2. Adjust the angle of the
Projectile Launcher to
any desired angle.
3. Attach the Photogate
Mounting Bracket to the launcher and attach the Photogate to the
Equipment required:
Computer interface (CI-6450 or CI-
7599 or PS-2123 with PS-2100)
*
Time of Flight Accessory (ME-6810)
Projectile Launcher and ball (ME-
6800 or ME-6801)
Phone Jack Extender Cable (PI-8117)
DataStudio software (CI-6870C) Photogate Mounting Bracket (ME-6821)
Photogate Head (ME-9498) Measuring tape or stick
Plum Bob (SE-8728) White paper
Carbon paper Vertical target board
V
x
x
t
--- =
ME-6800
SHOR T RANGE PROJ ECTIL E LAU NCHE R
WEAR SAFE TY GLAS SES – WHEN IN US E.
CAUT ION! DO N OT LO OK DOW N BA RREL ! CAUT ION! DO N OT LO OK DOW N BA RREL !
0.5 m
at least 2 m
Figure 3.1: Experiment Setup
* If a computer interface is not available, use a Photogate Timer (ME-8930).