A car, moving with a speed of \( 50 \mathrm{~km} / \mathrm{hr} \), can be stopped. by brakes aft...

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