Data Analysis: 1. First, work only with the Trial 1 data points. Recall that the accepted value for the mass of the IO Lab Device is 0.202 kg.

2. Use the values of L and H to find the angle ? for this experiment.

3. In the first part of the experiment (steps 5 and 6), you recorded several positons of the device. These were distances, d, from the starting point, where d = 0 (see Figure 2). Use these values and the angle you found to determine the vertical position, h, below the starting point at each moment. Note that if we choose the initial height to be a vertical position of 0 in our coordinate system, we should record these other vertical positions as negative (assuming we use a coordinate system where upwards is the direction of the positive height-axis.

4. Use the velocity and the vertical position in each case to calculate the total mechanical energy at each moment, including the beginning.

5. Repeat all the Data Analysis steps for the Trial 2 data you collected

Data: Trial 1: Length of Ramp: 23 2 inches = 0.60m Height of Ramp: 14 inches = 0.35m Any Position #1: 0.144m Any Velocity #1: 1.150m/s Any Position #2: 0.075m Any Velocity #2: 0.760m/s Any Position #3: 0.319m Any Velocity #3: 1.766m/s Trial 2: Length of Ramp: 23 2 inches = 0.60m Height of Ramp: 14 inches = 0.35m Any Position #1: 0.062m Any Velocity #1: 0.759m/s Any Position #2: 0.129m Any Velocity #2: 1.169m/s Any Position #3: 0.365m Any Velocity #3: 1.989m/s