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Presentation transcript:

Please have just a sheet of paper and your calculator out Pop Quiz Please have just a sheet of paper and your calculator out

A 5 kg rollercoaster cart operating on a frictionless track has a speed of 10 meters per second while at the top of a 5 meter high hill. Q1. What is the cart’s total energy at the top of the hill? Q2. What is the cart’s speed at the bottom of the hill? KE = 1/2 mv2 ; PEg = mgh ; PEs = ½ kx2; ET = KE + PE + Q

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Examples of Conservation of Energy

Homework Questions (Springs)