Answer:
A tortoise starts at a position of 0 m. It moves 10 m west,10 m east, and then 10 m south.
Step-by-step explanation:
Let's assume southern and eastern movement as positive and northern and western movement as negative. Since we want the displacement, starting position should not be considered.
1-) A tortoise starts at a position of 3 m south. It moves 4 m east, 2 m west, and then 3 m north.
S = -3m
E = 4 - 2 =2m
2-) A tortoise starts at a position of 0 m. It moves 10 m west,10 m east, and then 10 m south.
S= 10m
E= 10 - 10 = 0m
3-) A tortoise starts at a position of 2 m north. It moves 4 m west and then 7 m south.
S= 7m
E= -4m
4-) A tortoise starts at a position of 0 m. It moves 10 m west, 5 m east, and then 5 m south.
S= 5m
E= 5 - 10 = -5m
Analyzing all of the previous scenarios, only one presents a 10 m southern displacement, and that is when the tortoise starts at a position of 0 m. It moves 10 m west,10 m east, and then 10 m south.
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