55/5=11h; 160/(9:55)>11; {140/(12/25)+140/(15/50)}>11; It is B) Why? Simple: t=s/v for B and t=2s/a but hey what is |a| for bends? approx is a=v/r, so? t for A&C is? yes t=2s/(v:r) Physics from sec gramm, that is it ;) Why can we approx a to a^n? coz :a^1 > :a^n :)

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