Unformatted text preview: y o is the distance the spring is stretched when it is in the equilibrium position (with mass m hanged). If the spring has a mass of m hanging on it, the elongation, y o = mg/k. (Rewriting equation (1) substituting: y o = mg/k ): 2. ME = ½(m)v 2 + ½(k)(mg/k – y) 2 + mgy = ½(m)v 2 = ½(m 2 )(g 2 )/k – mgy + ½(k)y 2 + mgy When we combine the two potential energy terms: 3. ME = ½(m)v 2 + ½(k)y 2 + (m 2 )(g 2 )/2k Since the last term on the right hand side is a constant, the sum of the first two terms on the right hand side must be a constant for mechanical energy to be conserved. 3.  Procedure The motion detector was connected to the ULI interface so that the spring constant could be measured....
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 Spring '10
 Universal
 Physics, Conservation Of Energy, Energy, Kinetic Energy, Mass, Potential Energy

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