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patriot [66]
2 years ago
15

A person is walking briskly in a straight line. The figure shows a graph of the person’s position x as a function of time t. Wha

t is the person’s average velocity between t = 6 s and t = 10 s?

Physics
1 answer:
Nina [5.8K]2 years ago
7 0

The average velocity over the interval 6\le t\le 10 is

\dfrac{x(10)-x(6)}{10\,\mathrm s-6\,\mathrm s}=\dfrac{6\,\mathrm m-2.67\,\mathrm m}{4\,\mathrm s}=0.8325\,\dfrac{\mathrm m}{\mathrm s}

where x(t) is the person's position at time t. I've taken the liberty of estimating x(6)\approx2.67\,\mathrm m. The closest choice among the answers is 0.8\,\dfrac{\mathrm m}{\mathrm s}.

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