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Problem Solving in Physics
by April Atkin
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Problem Solving in Physics

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Conservation of Energy

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Energy is usually conserved. Carefully note what kinds of energy you start and finish with and make them equal to each other.

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Conservation of Momentum

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Are there any eternal forces?

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Are there any eternal torques?

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Formulas

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Check your formula sheet - are there any formulas that have the variables you need to solve this problem?

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Trig Identities

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Solving a triangle? Use SOH CAH TOA to find unknown quantities

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Sum of the Forces

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Remember, the Sum of the Forces F=ma - if there is no acceleration, there is no net force!

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This works for the sum of the torques too. The sum of the torques =I(alpha)

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