PROCEDURE 2: Conservation of Energy (with Friction) In this procedure, you will include friction in your simulation in order to show how conservation of energy still holds when nonconservative forces act in a system 1. Using the same "Energy" tab simulation, move the "Friction" slider away from "None", midway toward "Lots" Length 1 0.70 m Mass 1 1.00 kg Gravity None Lots Earth Friction Nona 2. Use the following initial settings Length: 0.7 m Mass : 1.0 kg Angle : 0 degrees Speed is set to "Slow " 3. Click and drag the mass on the end of the pendulum up to an angle of 50 degrees and release 4. Observe the KE, PE, E, and E energies in the graph on the left of the simulation as the mass oscillates. 5. Use Equation 3 from theory to determine the height of the mass at 50 degrees. 6. Use Equation 2 to determine the potential energy of the mass at this height (PE ma)