speed and distance of a car

Question

when the speed of a car is v,the minimum distance over which it can be stopped is s. If the speed becomes nv,what will be the minimum distance over which it can be stopped?

Answer 1

Too bad, the velocity got dropped out of your problem.

 

ill guess you tried to say

” if the velocity is v, the stopping distance is s”

then you asked, “if the velocity is nv, what is the stopping distance”

 

It depends on whether “stopping distance = “braking distance” or if it also includes “reaction distance”.

 

ill answer the easier question: if braking distance at velocity v is s, what is braking distance starts no at nv? 

 

The physics answer is that the braking distance is proportional to the velocity squared.

 

So distance is n²s.