Weaver Tran
05/27/2024 · Junior High School

19. För en bil med bra däck och bromsar kan den ungefärliga bromsstrickan pá torr asfalt beriaknas med formeln \( s=\frac{\nu^{2}}{200} \) där \( s \) är bromssträckan i meter och \( \nu \) är hastigheten \( \mathrm{i} \mathrm{km} / \mathrm{h} \). Hur mycket längre blir bromssträckan enligt formeln om man \( \mathrm{kör} \) i hastigheten \( 70 \mathrm{~km} / \mathrm{h} \) jämfört med om man kör i hastigheten \( 50 \mathrm{~km} / \mathrm{h} \) ?

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Bromssträckan blir 12 meter längre vid 70 km/h jämfört med 50 km/h.

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