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Question

A car travels on paths A, B and C within the same time and has velocities VA, VB and VC respectively on each path. These paths pass through a group of equally spaced lines. Pick the correct ranking of velocities.


A
VA = VB = VC
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B
VA > VB > VC
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C
VA < VB < VC
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D
VA < VB > VC
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Solution

The correct option is A VA = VB = VC
Three paths A, B and C have been covered with velocities VA, VB, VC

Average velocity= Total displacementTotal time

Time taken to cover all the paths is the same.
So, Average velocity ∝ Displacement

Displacement for Path A = x
Displacement for Path B = x
Displacement for Path C = x

Since displacement and time is same for all paths, velocities for all paths will also be the same.

VA = VB = VC

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