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2015-05-12T11:05:50+05:30

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GIVEN ;-

 ⇒A physics teacher walked in four direction -

                                ⇒ North = 2 meter

                                ⇒ South = 2 meter

                                ⇒ East =  4 meter

                                ⇒ West = 4 meter



TO FIND ;-

⇒ What is the total distance travelled?

What is the boy’s displacement from P?



SOL ;-

⇒ Let us first find the total distance travelled by the physics teacher -


⇒ Total. distance travelled = North + South + East + west


                                       ⇒ 2 + 2+ 4 + 4
                         
                                       ⇒ 12 meter 


!2 meter is the distance travelled by the physics teacher.

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Now let us find the displacement of the teacher-




The displacement of the physics teacher is 0 because when the teacher walks towards  2 metre north which gets cancelled when she walks towards 2 metre south ,  and also when she walks 4 meter east so this gets cancelled by 4 meter west ,  so hence her dislacement is 0 
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2015-05-12T11:34:48+05:30

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Total distance  =   4 + 2 + 4 + 2 = 12 meters 

displacement = shortest path traised by the particle so we can say that  the particle will reach at its initial position so displacement will be 0
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