Initial data: V0 (the speed with which the car hit the brake shoe) = 4.5 km / h (1.25 m / s); t (time of movement of the car before stopping) = 3 s.
The braking distance of the car can be determined by the formula: S = V0 ^ 2 / 2a = V0 ^ 2 / (2 * V0 / t) = V0 * t / 2.
Calculation: S = 1.25 * 3/2 = 1.875 m.
Answer: The braking distance of the car is 1.875 m.
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