The problem that follow involve straight-line motion. The time t is in seconds unless otherwise stated.
Problem
The boat's position during the interval of time from t = 2 s to t = 10 s is given by .s = 4t+ 1.6t2 – 0.08t3 m.
(a) Determine the boat's velocity and acceleration at t = 4 s.
(b) What is the boat's maximum velocity during this interval of time, and when does it occur?
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