Question: The coordinate of an object is given as a function of time by x = 7t-3t, where x is in meters and t is in

The coordinate of an object is given as a function of time by x = 7t-3t², where x is in meters and t is in seconds. Its average acceleration over the interval from t = 0 to t = 2 s is:

A) 0 m/s²

B) -5 m/s²

C) 6 m/s²

D) -6 m/s²

E) 1 m/s²

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