The position of an object is given by x = at3 - bt2 + ct,where a = 4.1 m/s3,b = 2.2 m/s2,c = 1.7 m/s,and x and t are in SI units.What is the instantaneous acceleration of the object when t = 0.7 s?
A) -13 m/s2
B) 2.9 m/s2
C) 4.6 m/s2
D) 13 m/s2
Correct Answer:
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