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4 years ago

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4. A person is standing 4 miles east from his house. He travels 2 miles east. a. Calculate the initial displacement. b. Calculat

e the distance traveled. 5. The same person above then travels back and stops 2 miles west of his house. a. Calculate the final displacement. b. Calculate the total distance traveled.

1 answer:

Pani-rosa [81]4 years ago

5 0

Answer:

4) a) $s = +4\,mi$ , b) $\Delta s = 2\,mi$ , 5) a) $s = -2\,mi$ , b) $\Delta s = 10\,mi$

Explanation:

4) Let assume that distance with respect to origin is positive at east, while distance is negative at west.

a) The initial displacement is:

$s = +4\,mi$

b) The distance travelled is:

$\Delta s = 2\,mi$

$\Delta s = 2\,mi$

5) a) The final displacement is:

$s = -2\,mi$

b) The total distance travelled is:

$\Delta s = 2\,mi + 6\,mi + 2\,mi$

$\Delta s = 10\,mi$

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