A boy moves 5km east, 4km north, 9km west and finally 1km along south resultant displacement is equal to:
A. 5km NE
B. 19km WS
C. 5km WN
D. 5km ES
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Answer:
5 km SE is the displacement
Answered by
0
Answer:
Let AB be 5km
BC be 4 km
CA be 9km
Join AD
Displacement=√(5^2+2^2)+√(9^2+2^2)
=(√25+4) + ( √81+4)
=√29+√85=√85+√29
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