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MBBphys
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Homework Statement
In one of my revision guides, there is an experiment for calculating the acceleration of free fall using the electromagnet and trap door arrangement. The biggest error is in the measurement of the height over which the ball falls. The guide says: "You could reduce the error in your measurement of h by using a set square to make sure your eye is level with the ruler".
What does that mean? How do you do that?
Thanks!
Homework Equations
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The Attempt at a Solution
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