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Velocity and acceleration

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I constructed a fairly simple experiment related to curvlinear motion. The experiment involved a small metal ball that rolls off a table and lands on the floor. I used the edge of table as the Y direction.

I timed the trial run from the of the edge of the table and when the ball hits the floor. I know X (total of all time through each trial)= Xo + A (total trial time of ball hitting the floor) will allow me to solve acceleration of the ball. I'm unsure how to 'prove acceleration". I believe, when proving acceleration you have to figure out what the data will be before conducting the experiment. How do I prove acceleration?

Let's assume the tables edge is 0.8m.

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The force on a falling body is only the force due to gravity called weight of the body. This force produces acceleration in the body which is called acceleration due to gravity. This acceleration is a constant and does not depend on the mass ...

Solution Summary

The acceleration of a freely falling ball is determined experimentally.