Asked by Jas
A ship sailed 15 km north, then 20km east followed by 10km south. Find its displacement from its starting point
Answers
Answered by
drwls
The first and last legs of the journey are equivalent to a displacement of 5 km north.
Add, as vectors, the net displacement vectors of 5 km north and 20 km east. Use the Pythagorean theorem.
sqrt(5^2 + 20^2) = sqrt(425) = ___ km
Add, as vectors, the net displacement vectors of 5 km north and 20 km east. Use the Pythagorean theorem.
sqrt(5^2 + 20^2) = sqrt(425) = ___ km
Answered by
etulan
with the sqare root of 425,the answer will be 20.6km
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