- #1

seallen

- 7

- 0

## Homework Statement

Within this lab I was supposed to perform a virtual experiment and find the rate a ball dropped on the moon, mars, and earth. I have recorded all of my results in the table below. My problem is that my average velocity on Earth ended up as 8.9 m/s, and I thought that the constant was supposed to be 9.8 m/s? I don't know where I went wrong in my calculations.

My other question comes with acceleration, according to my teacher I will only have 4 values for acceleration for each table of data however why couldn't I have five, in the second column could acceleration be calculated?

Finally when my average acceleration stayed steady at 10.25 and then decreased to 9 this seems incorrect to me because I thought that an object in free fall accelerates constantly?

Earth

Time (s) 0 0.2 0.4 0.6 0.8 1

Distance (m) 0 0.2 0.8 1.81 3.23 5.01

Average Velocity (m/s) 0 1 3 5.05 7.1 8.9

Average Acceleration 0 0 10 10.25 10.25 9

Moon

Time (s) 0 0.4 0.8 1.2 1.6 2

Distance (m) 0 0.13 0.52 1.17 2.09 3.27

Average Velocity (m/s) 0 0.325 0.975 1.625 2.3 2.95

Average Acceleration

Mars

Time (s) 0 0.3 0.6 0.9 1.2 1.5

Distance (m) 0 0.17 0.68 1.51 2.68 4.17

Average Velocity (m/s) 0 0.566666667 1.7 2.766666667 3.9 4.966666667

Average Acceleration

## Homework Equations

Average Velocity= (final distance-initial distance)/ (end time-beginning time)

When I attempted to solve this for example I did (5.01-3.23)/(.2) and came up with an average velocity of 8.9. I don't see how this is correct and am hesitant to turn in my answer. I am now worried that I have calculated all of my initial velocities incorrectly.

## The Attempt at a Solution

My attempts at a solution are listed above.