A body travels a distance of 3 km towards east then 4 km towards north and finally 9 kilometre towards east what is the resultant displacement.
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R = 3i + 4j + 9i = 12i + 4j
Resultant displacement = √(12² + 4²) = √(144 + 16) = √(160) = 12.649 km
Resultant displacement = √(12² + 4²) = √(144 + 16) = √(160) = 12.649 km
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