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 + 5t2 - 5t, 0 ? t ? 5Find the body's speed and acceleration at the end of the time interval.
A. 5 m/sec, 0 m/sec2
B. 30 m/sec, -20 m/sec2
C. -30 m/sec, -20 m/sec2
D. 30 m/sec, -5 m/sec2
Answer: B
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