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Question

Specialists can determine the speed a vehicle was travelling from the length of its skid marks, d,mand coefficient of friction, f. The formula for calculating the speed, s, is s = 15.9 √df. Rewritethe formula to solve for the length of the skid marks

hintHint:

Rearrange the equation and solve for d.

The correct answer is: not stretchy rightwards double arrow d equals fraction numerator s squared over denominator 252.81 f end fraction


    Complete step by step solution:
    Here we have the formula for speed  s = 15.9 square root of d f end root
    Where, s is the speed, f is the coefficient of friction and d is the length of its skid
    marks.
    Now on squaring both the sides, we have s squared equals 252.81 d f
    .                                                             not stretchy rightwards double arrow d equals fraction numerator s squared over denominator 252.81 f end fraction

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