Question

(a) By taking the slope of the curve in Figure 2.72, verify that the velocity of the jet car is 115 m/s at $t = 20 \textrm{ s}$ . (b) By taking the slope of the curve at any point in Figure 2.73, verify that the jet car's acceleration is $5.0 \textrm{ m/s}^2$.

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$v = 100 \textrm{ m/s}$, $a = 4.8 \textrm{ m/s}^2$

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