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One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 2.16 km. They start at the west side of the lake and head due south to begin with. (a) What is the distance they travel? (b) What is the magnitude of the couple’s displacement? (c) What is the direction (relative to due east) of the couple’s displacement?

  • Phyics - ,

    to find the distance multiply radius*2 and then take that answer and multiply it by pi (3.14) to get the total distance around lake then multiply the total by 0.75 to get answer for the distance traveled

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