School

Decatur High School, Decatur **We aren't endorsed by this school

Course

MATH 1314

Subject

Physics

Date

Apr 25, 2023

Pages

3

Uploaded by CaptainSummerEchidna22 on coursehero.com

DATE:
LAB#: 2
TITLE: Projectile Motion
AIM: To determine the initial velocity and the launch angle of a projectile.
APPARATUS:
https://phet.colorado.edu/sims/html/projectile-motion/latest/projectile-
motion_en.html
THEORY: Projectile motion is the motion of an object upon by gravity only.
The velocity in
the horizontal direction is constant but in the vertical direction is increasing uniformly, for a
projectile launched from a height (y) and an angle Ø respect to the horizontal is given by the
formula
can be derived
VARIABLES:
Manipulated: height of platform
Responding: horizontal distance of the cannonball.
Controlled:
cannonball and angle of declination

METHOD
1.
Click on the link to launch the simulation
2.
Adjust the platform with the cannon to a height of 15m.
3.
Set the cannon to an angle of 10
o
below the horizontal.
4.
Launch the cannonball.
5.
Use the measuring tape to measure and record the horizontal distance of the
cannonball.
6.
Adjust the platform to obtain 5 additional readings.
7.
Plot a graph using the equation:
RESULTS:
TABLE SHOWING
Vertical Height (y)
Horizontal
distance ( X
1
)
Horizontal
distance (X
2
)
Average
horizontal
distance X
15
37.1
37.1
37.1
0.40
13
>34.9
>35
34.95
0.37
11
32.7
32.7
32.7
0.33
9
30.3
30.3
30.3
0.30
7
27.5
27.5
27.5
0.25
5
24.4
24.4
24.4
0.20
CALCULATIONS:
Calculate the gradient of the graph.
Determine the y intercept

Determine the value of
and the value of Vo from
ϴ
PRECAUTIONS:
1) Take more than one Readings
2)
SOURCES OF ERROR:
1)
2)
CONCLUSION:

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