Part B roblem 2.21 Find the instantaneous acceleration at time t = 7 s The graph

Question

Part B roblem 2.21 Find the instantaneous acceleration at time t = 7 s The graph in the figure shows the velocity of a motorcycle police officer plotted as a function of time. (Figure 1) Express your answer in meters per second squared to two significant figures ax= 6.0 m/s2 Submit My Answers Give Up Correct Figure 1 of 1 Part C Find the instantaneous acceleration at time t = 11 s v(m/s) 50 45 40 35 30 25 20 15 10 Express your answer in meters per second squared to two significant figures Submit My Answers Give Up Incorrect; Try Again; 5 attempts remaining t (s) 02 4 6 8 10 12 14

Explanation / Answer

Note : The answer may slightly vary because the graph has very few data points.

Answer: -11 m/s2

acceleration is tangent at a point in velocity time graph.

tangent = change in y / change in x

= 0 (at time 13s) - 44 (at time 9s) / 13 - 9

= -44 / 4

= -11 m/s2

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