Question

The velocity of an object as a function of time is given by v= (12.5t-7.2t2) + (4.3t3). What is its acceleration as a function of time?
A) a= (12.5 -14.4t) + (12.9t2)
B) a= (-7.2) + (4.3t)
C) a= (5.3t) + (12.9t2)
D) a= (-7.2) + (8.6t)
E) a= (-14.4t) + (4.3t2)

Answer

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