On a foggy day, two drivers spot each other when 80 m apart. They were travelling at 70 km/h and 60 km/h towards each other on the same road. Both apply brakes simultaneously which retard the cars at the rate of 5 ms -2. Which of the following statements is correct

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The collision will be averted

The collision will take place

They will just collide

Can't be predicted

answer is A.

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Detailed Solution

stopping distance for 1st car =70×51822(5)=37.8Stopping distance for 2nd car =60×51822(5)=27.7⇒ D = d1 + d2 = 65.5 < 80 Collision is averted.

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