Concept explainers
Does a real automobile have constant acceleration? Measured data for a Porsche 944 Turbo at maximum acceleration are as shown in the table.
t(s) | Vx(mph) |
0 | 0 |
2 | 28 |
4 | 46 |
6 | 60 |
8 | 70 |
10 | 78 |
a. Convert the velocities to m/s, then make a graph of velocity versus time. Based on your graph, is the acceleration constant? Explain.
b. Draw a smooth curve through the points on your graph, then use your graph to estimate the car's acceleration at 2.0 sand 8.0 s. Give your answer in SI units. Hint:
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