Tutor, my answers and notes to you are in red
Projectile Motion Experiment
By Monday, August 19, perform the following experiments online at the Projectile Motion - Galileo
website. (http://galileo.phys.virginia.edu/classes/109N/more_stuff/Applets/ProjectileMotion/jarapplet.html)
Fill in the tables, and post your answers to the questions.
Question 1
Procedure: Keep the initial velocity fixed at 50 m/s. Perform the experiment for each of the following
angles:





15 degrees
30 degrees
45 degrees
60 degrees
75 degrees
Record in table 1:



The maximum horizontal distance (Range) traveled by the projectile at various angles
The total time of flight at various angles
The maximum height attained
Table 1: Experiment 1 - Range & Time of flight
S. Initial
No. Velocity
Angle of
Range
Projection
1.
50 m/s
15°
Maximum
Time of
Height
Flight
Attained
127.42 m 2.64 s 8.54 m
2.
50 m/s
30°
220.7 m
3.
50 m/s
45°
254.84 m 7.21 s
63.71 m
4.
50 m/s
60°
220.7 m
95.56 m
5.
50 m/s
75°
127.42 m 9.85 s
5.1 s
8.83 s
31.85 m
118.88 m
Observe and Analyze:



What angle produces the maximum range? Why?
What angle produces the maximum height? Why?
Are there angles which produce the same range? If so, how would you explain this?
Question 2
Procedure: Set the angle to 45 degrees. Perform the experiment with the following initial velocities.




30 m/s
40 m/s
50 m/s
60 m/s
Record in Table 2: The horizontal and vertical components of the velocity and the ranges for each of the
velocities.
Table 2: Experiment 2 - Range at 45°
S.
No.
1.
2.
3.
4.
Initial
Velocity
30 m/s
40 m/s
50 m/s
60 m/s
Horizontal
Velocity
Vertical
Velocity
Range at
45°
Tutor, the experiment online only gives me the values of Max distance, Max height, end velocity,
and total time. It does not give horizontal or vertical velocities. So, I’m just going to write down my
findings from the experiments and you can try to figure out what the horizontal and vertical
velocities are because I have no clue what they’re talking about in Table 2 listed above.
30 m/s - Max distance: 91.74 m, Max height: 22.93 m, End velocity: 30 m/s, Total time: 4.32 s
40 m/s - Max distance: 163.1 m, Max height: 40.77 m, End velocity: 40 m/s, Total time: 5.77 s
50 m/s - Max distance: 254.84 m, Max height: 63.71 m, End velocity: 50 m/s, Total time: 7.21 s
60 m/s - Max distance: 366.97 m, Max height: 91.74 m, End velocity: 60 m/s, Total time: 8.65 s
Observe and Analyze:


As the velocity is increased what happens to the Range?
Using the initial horizontal and vertical velocities from your table, verify mathematically that the
range is correct for the initial speed of 60 m/s.
Attached are assignment related online lectures and textbook chapters