# Lab2 - Devin Seese 3409531 Joe Kinney Problem 1 Mass and the Acceleration of a Falling Ball Problem Description In this problem three balls with

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Devin Seese 3409531 Joe Kinney Problem 1: Mass and the Acceleration of a Falling Ball Problem Description: In this problem, three balls with different masses were dropped from a height of 1m (+- .1). This problem investigates whether different mass affects the rate of acceleration on free-falling objects. First, predictions were made in regards to the acceleration of objects with different masses. Second, a meter stick was tapped to the wall in order to keep the falling distance consistent. Third, the three balls were dropped and the times were recorded with a stopwatch. Human error could occur at this step (stop watch operation). Finally, the motion of the three balls was recorded by video equipment and was analyzed using a computer program. The results and the predictions were recorded and compared. The lab required use of three balls, a stopwatch, meter stick, video equipment, and computer software. Prediction: In this problem we are examining if there are any differences in acceleration between three balls with different masses. This can be illustrated by drawing two separate graphs: the acceleration of one ball with a set mass and the acceleration of another ball with a different mass. Acc. Of light-weight ball Acc. Of heavy-weight ball Acc. Acc. Time Time -9.8m/s2 -9.8m/s2 From these graphs the prediction was made that acceleration stays consistent with varying mass. If there is no initial velocity at the beginning of the freefall, all objects of every mass will have the same acceleration while freefalling: -9.8m/s2. Procedure: The procedure included three standard steps: assembly, drop trials, and computer analysis. During the set up, a meter stick was tapped to the wall in order to keep the falling distance consistent and the camera was positioned to capture the motion. The balls were all weighed: foam ball 12.65g (+-.01), street hockey ball 47.8g (+-.01), and the tennis ball 57.5 (+-.01), The balls were dropped from a distance of 1m (+-.1) A handheld stopwatch recorded the time it took the different balls to fall one meter to the

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table surface. The average time with the stopwatch for each ball was .7s (+-.1). The
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## This test prep was uploaded on 04/19/2008 for the course PHYS 1101 taught by Professor Unknwn during the Winter '08 term at Minnesota.

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Lab2 - Devin Seese 3409531 Joe Kinney Problem 1 Mass and the Acceleration of a Falling Ball Problem Description In this problem three balls with

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