Isn't this a strange result? The experiment is carried out in air, not
in a vacuum. So why does a model which neglects drag forces provide
such a good fit of the data?
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Why do eqns. (9.2) and (9.3) essentially give the same result? Show mathematically that when and are small, eqns (9.2) and (9.3) are identical. Follow procedure given for solving Question 1 - Practice.
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