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NTA Abhyas JEE Main2020PhysicsMotion in One DimensionPractice

A car moving with a speed of 50 km h - 1 can be stopped by brakes in at least 6 m . If the same car is moving at a speed of 100 km h - 1 , then the minimum stopping distance (in m ) is

Correct answer

24

Step-by-step solution

The stopping distance of a car is s = u 2 2 a Therefore, for the two situations given in the question, we can write s 1 s 2 = u 1 u 2 2 = 1 4 6 s 2 = 1 4 ⇒ s 2 = 24 m

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