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10. A person walks 12.0 m east, then turns and goes 5.00 m west, then turns and goes back 2.00 m east.

a) What is the person's distance?

b) What is the person's displacement?

Answer :

Final answer:

The distance traveled by the person is 19.00 m, and their displacement is 7.00 m east.

Explanation:

Distance is a scalar quantity that refers to the total length traveled, while displacement is a vector quantity that represents how far an object is from its starting point in a straight line. To find the person's distance, we add up the magnitudes of all the displacements: 12.0 m + 5.00 m + 2.00 m = 19.00 m. To find the person's displacement, we need to determine the magnitude and direction of the vector sum of the individual displacements. In this case, the person walks 12.0 m east and then goes 5.00 m west, resulting in a net displacement of 12.0 m - 5.00 m = 7.00 m east.

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Step-by-step explanation:

Given that,

A person walks 12.0 m east, then turns and goes 5.00 m west, then turns and goes back 2.00 m east.

(a) Distance is equal to total path covered during the entire journey.

Distance = 12 + 5 +2

Distance = 19 m

(b) The shortest path covered is equal to the shortest path traveled. Let east is positive and west is negative. So,

Displacement = 12 +(-5) +2

Displacement = 9 m