The function s = f(t) gives the position of a body moving on a coordinate line, with s in meters and t in seconds.s = - t3 + 2t2 - 2t, 0 ? t ? 2Find the body's speed and acceleration at the end of the time interval.
A. 6 m/sec, -8 m/sec2
B. -6 m/sec, -8 m/sec2
C. 2 m/sec, 0 m/sec2
D. 6 m/sec, -2 m/sec2
Answer: A
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A. 
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C. 3?
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