(Solved):   Experiments indicate the braking distance, \( d \), before a car comes to rest from a spee ...

 

Experiments indicate the braking distance, \( d \), before a car comes to rest from a speed, \( v \) (Table 2). Table 2: Braking distances for various speeds It is believed that the relation between braking distance and speed can be modelled by a quadratic function, \( d=a+b v+c v^{2} \). (i) Use the given data to obtain 3 equations. What are the unknowns?