A car, moving with a speed of 50 km / hr , can be stopped by brakes after at least 6 m . If the same car is moving at a speed of 100 km / hr , the minimum stopping distance is

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Energy = Work done by force ( F ) ⇒ 2 1 ​ m . ( 50 ) 2 = ( F ) ( 6 ) ⇒ F = 2 × 6 2500 m ​ For v = 100 km / hr 2 1 ​ ⋅ m ( 100 ) 2 = ( F ) ( S ) ​ ⇒ 2 1 ​ m ( 100 ) 2 = ( 2 × 6 2500 m ​ ) S ⇒ S = 2500 × 2 100 × 100 × 6 × 2 ​ = 24 m ​

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