A driver applies the brakes on seeing traffic signal 400 m ahead. At the time of applying the brakes, vehicle was moving with 15 ms-1 and retarding with 0.3 ms-2. The distance of vehicle after 1 minute from the traffic light is

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25 m

375 m

360 m

40 m

answer is A.

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Detailed Solution

Stopping distance =v22a=15×152×3=375mdistance from the signal 400 - 375 = 25m

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