- #1
ErinSK
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Homework Statement
After gathering data via ticker tape, of a falling object, I had the following information:
Time (s), Displacement (cm)
0.0 - 0.1 , 6.2
0.1 - 0.2 , 16.0
0.2 - 0.3 , 24.5
0.3 - 0.4 , 33.1
0.4 - 0.5 , 43.0
0.5 - 0.6 , 49.7
The Question:
Determine the average acceleration. Is the acceleration due to gravity uniform? Explain your answer using evidence from your investigation.
Homework Equations
Avg. Velocity = Displacement / time
Avg. Acceleration = (Change in Velocity) / time
The Attempt at a Solution
I calculated the average velocities (cm/s) as 62, 160, 245, 331, 430, 497.
I then calculated average velocity as 725cm/s/s :
Avg. Accel. = (497-62) / 0.6
I was planning on proving that it is uniform acceleration by calculating the acceleration between two consecutive points however when doing so, I always get an acceleration much less than 725cm/s/s.
Accel. = (331 - 245) / 0.2
= 430cm/s
I get something similar with all consecutive points and I don't understand why/ I don't know what I'm doing wrong.
Please help!