# Physics

A meter stick is balanced at the 50.cm mark. You tie a 25.N weight at the 30.cm mark. Where should a 30.N weight be placed so the meter stick will be balanced?

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1. 25*30 = 30*d

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oobleck
2. 50 - 30 = 20
25 / 30 * 20 = 16.7 cm
50 + 16.7 = 66.7 cm mark

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3. Oops.
25(50-30) = 30(d-50)
d = 200/3 = 66.7

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oobleck

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