a boy travels 10m due north than 7m due east . find the displacement
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Explanation:
Displacement of the boy is in the form of a right angled triangle with base 7m and altitude 10m. hence the displacement is the hypotenuses.
Therefore √(100+49)=√149.
the boy is now facing in the south west direction to face his original starting point.
therefore his displacement is √149 in the northeast direction.
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