The coefficient of friction between the road and the car's tire is determined as 0.78.
The acceleration of the car is calculated as follows;
v² = u² - 2as
0 = u² - 2as
a = u²/2s
where;
a = (26.94)²/(2 x 47)
a = 7.72 m/s²
μ = a/g
μ = (7.72)/9.8
μ = 0.78
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