Question 498545: Physical Science I
Laboratory/Exercise 3
Use the following data to calculate the velocity and acceleration of a free falling object. The object is 45 meters above the ground and free falls to the earth.
Time
seconds
Distance
Meters
Average Velocity
m/s
Final Velocity
m/s
Acceleration
m/s2
0.000
0.000
0
0
0.250
0.306
0.500
1.23
0.750
2.76
1.00
4.90
1.25
7.65
1.50
11.0
1.75
15.0
2.00
19.6
2.25
24.8
2.50
30.6
2.75
37.1
3.00
44.1
Calculate the Average Velocity using: Average velocity = Distance/time.
Calculate the final velocity. Vf = 2 x Vave
Calculate the Acceleration. A = Vf / t
How do the values compare to the known value of g?
1.Highlight the tables and copy them to a Word document.
2.Save the document on your hard drive or on a floppy disk.
3.Print the tables so you can use them to manually record the data.
4.Access the web page http://jersey.uoregon.edu/vlab/AverageVelocity/index.html
This may take several minutes depending on the transfer speed of your internet connection.5.Follow the directions to calibrate the timer.
6.Using the "Start" green line, set the zero. This is done by left-clicking the mouse on the green line, holding the left side down and moving the mouse.
7.Using the"Stop" redline, set the distance list in the table below. Same method as in 6.
8.Use only earth’s gravitation.
9.Repeat the time measurement for each distance listed
10.Calculate values for the three remaining columns
11.Enter your data, calculated values, and answers to the questions at the bottom of this sheet in the table and save it.
12.Send the table to your instructor via the drop box for grading.
Trialnumber
Distancem
Time
seconds
AverageVelocity
m/s
Final Velocity
2 x Vave
Acceleration
Vf / t
1
1.00
2
1.50
3
2.00
4
2.50
5
3.00
6
3.50
7
4.00
8
4.50
9
5.00
10
5.50
11
6.00
Average
How does the "Average" calculated values in the table compare to the known value of g? 1.Why is Vave multiplied by 2 to obtain Vf?
2.The acceleration due to gravity is what value?
Answer by richard1234(7193)   (Show Source):
You can put this solution on YOUR website! Your table is too "gibberish;" you'll have to re-format that. Also, no one's going to do your entire lab for you. Algebra.com is a place for homework help and general help, but we do not do entire assignments for you.
As a starter, note that the height X of an object in free fall in terms of time t is
where x_0 is the original height, v_0 is the original velocity, and a is the acceleration due to gravity (9.8 m/s^2).
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