Graph these results using Excel. Plot RELEASE POSITION (in m) on the horizontal axis and VELOCITY (in m/s) on the vertical axis. Produce another graph for Velocity squared (V² in m²/s²) on the Vertical axis and DISPLACEMENT (in m) on the horizontal axis. Include the graphs in your report (attached as a separate page/s is fine). Describe the shape of the curves.

What happened to the velocity as you released the car from higher points?

Describe two ways you could make the car go down the ramp faster without changing the height of the ramp or the release positions.

Can you suggest what are the factors that contributes to the difference between the average & expected speed respectively?

• Please comment as to why this difference decreases with increasing velocity.

Write a discussion and conclusion about this experiment. Summarise the results. Include some thoughts on the underlying physics involved and sources of errors that may have been observed. 

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date: 12/08/2020 C Periperal conditions: temperature: 19.2 Calculated/measured variables: number of blocks used: 5 blocks height of blocks: length between track feet: 0.0975 m 0.982 m sine 0.09929 m/s? m/s? g: 9.81 acceleration along slope: 0.9740 Velocity (m/s) Trial/ Release 20 40 60 80 100 Position (cm) 1 0.4044 0.6355 0.8374 0.9994 1.139 0.4054 0.6466 0.8328 0.9951 1.135 3. 0.3988 0.6477 0.8487 1.001 1.141 Average 0.4029 0.6433 0.8396 0.9985 1.1383 Expected v 0.6242 0.8827 1.0811 1.2484 1.3957 % difference 35.46 27.13 22.34 20.02 18.44