Kim walks her dog 5 blocks up the street and then 3 blocks back down
1 answer:
The distance covered is 8 blocks, the displacement is 2 blocks up
Explanation:
- Distance is a scalar quantity measuring the total length of the path covered by an object, regardless of the direction of its motion
- Displacement, on the other hand, is a vector quantity equal to the difference between the final position of motion and the initial position of motion. Its magnitude is equal to the shortest distance in a straight line between the initial and final point of motion.
In this problem, Kim walks the dog 5 blocks up and 3 blocks down:
- The distance is just the total length of the path taken, therefore:
- The displacement is a vector connecting the final point to the initial point. Since Kim walks 5 blocks up and 3 blocks down, her final position is
x = +5 +(-3) = +2
Which means, 2 blocks up. Therefore, the displacement is 2 blocks up.
Learn more about distance and displacement:
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