the boy of a school travels from his home to school is 1km east. when he reaches back home, he says travelled that he travelled 2km distance but his displacement is zero. justify your answer.
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because he is on his position for from he had started so his displacement is zero
abhikpoor2003:
A boy go to his school at shortcut and come back at home at longcut so his displacement is zero
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Distance - Distance is the magnitude of path covered by a body in its journey , it is a scalar quantity. Its SI unit is metre (m).
Displacement - Displacement is the magnitude of overall change in position of the body from its initial point to the final point, it is a vector quantity and its SI unit is same as distance that is metre (m)
So, as the boy started from his home and went to his school 1km far and returned back , his distance is (1+1) km = 2km and as his initial and final position was his home only , His displacement remains 0.
Displacement of a body can be zero but its distance can never be 0 if the body has travelled.
Displacement - Displacement is the magnitude of overall change in position of the body from its initial point to the final point, it is a vector quantity and its SI unit is same as distance that is metre (m)
So, as the boy started from his home and went to his school 1km far and returned back , his distance is (1+1) km = 2km and as his initial and final position was his home only , His displacement remains 0.
Displacement of a body can be zero but its distance can never be 0 if the body has travelled.
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