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Question

Two cars A and B are 5m long each. Car A is at any instant just behind B. A and B are moving at 54km/h and 36km/h. Find the road distance covered by the car A to overtake B.

A
35m
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B
30m
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C
32.5m
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D
27.5m
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Solution

The correct option is A 30m
To over take the car B, the back most point of car A must travel till the front most point of car B. i.e. 10m=0.01km.
Vrel=5436=18km/hr
Time taken to travel 0.01km,
t=0.0118hr
Now, total distance traveled by A is
(0.0118×54×1000)=30m

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