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Question
The three initial and final positions of a man on the x-axis are given as
(i) (-3 m, 7 m) (ii) (7 m, -3 m)
(iii) (-7 m, 3 m)
Which pair gives the negative displcement?
The three initial and final positions of a man on the x-axis are given as
(i) (-3 m, 7 m) (ii) (7 m, -3 m)
(iii) (-7 m, 3 m)
Which pair gives the negative displcement?
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Solution
The correct option is B (ii)
Displacement = Final position - Initial positionΔx=x2−x1
Then,
(i)Δx=7m−(−m)=10m
(ii)Δx=−3m−7m=−10m
(iii)Δx=3m−(−7m)=10m
Option (b)
Displacement = Final position - Initial position
Δx=x2−x1
Then,
(i)Δx=7m−(−m)=10m
(ii)Δx=−3m−7m=−10m
(iii)Δx=3m−(−7m)=10m
Option (b)
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