JEE Main 2004 Physics question

PhysicsMotion in a Straight LineJEE Main 2004

An automobile travelling with speed of 60 km/h, can brake to stop within a distance of 20 cm. If the car is going twice as fast, i.e 120 km/h, the stopping distance will be

Answer: (4)

Solution

With the same braking retardation, stopping distance . Doubling the speed makes the distance

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Question ID VK-038289