An automobile travelling with a speed of 60 kmph can break to stop with in distance of 20 m if the car is going twice as fast that is 120 kmph find the distance increase in stopping distance is?
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Explanation: Assumption: The resisting force on car is independent of the velocity. Let a be the deceleration of car when brake is applied to cause the car moving with initial velocity u=60 km/hr=503m/s to stop (final velocity, v=0 ) at s=20 m distance
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