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08/25/11 - Mathematical Models of Motion
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 | Simple model of a falling object with no air resistance.
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| More realistic model with air resistance dependent on velocity.
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Note: for a falling object, v is downward (negative), so -kv is upward (positive).
Let m = 70 kg, g = 9.8 N/kg, k = 10 N/(m/s)
Let y(0) = y0:
Let y0 = 1000 m.
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| Moving up (v > 0, so |v| = v)
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| Moving down (v < 0, so |v| = -v)
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Let m = 70 kg, g = 9.8 N/kg, k = 0.15 N/(m/s)2.
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| Read Section 2.3 of the text, pp. 37-44. Do exercises p. 45 (4,7,11,17).
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