Mathematics

Mathematics

Problem

A boat moves along a straight section of river so that its velocity relative to the riverbank at time tt seconds is v(t)=t2−6t+5(0≤t≤6).v(t)=t^{2}-6t+5 \quad (0\le t\le 6). Positive velocity indicates motion in the positive xx-direction; negative velocity indicates motion in the opposite direction. (a) Determine the boat’s displacement over the time interval [0,6][0,6] seconds. Show all work leading to your result. (b) Compute the total distance traveled by the boat on the same interval. (c) Find the ratio distance traveled∣displacement∣\dfrac{\text{distance traveled}}{|\text{displacement}|} and express it in simplest exact form. (d) Explain what the value of the ratio in part (c) indicates about the boat’s motion during the interval.

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