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 [...] Read more