A man travels a distance of 1.5m towards the east, then 2m towards the south and 4.5m towards the east. Find the total distance travelled and the net displacement.
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Total distance travelled by the man = 1.5+2+4.5 = 8 m
Resultant displacement can be found using the Pythagoras theorem.
Resultant displacement will be given by the hypotenuse, if the distance in east direction (i.e.) 1.5+4.5= 6 m is considered as base of the triangle and distance in south direction (i.e.) 2 m is considered as height of the triangle.
Resultant displacement = √(6² + 2²) = √40 = 2√10 m
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