a car moving with a velocity of 25.2 kilometre per hour is brought to rest by application of brakes within a distance of 10m show that the total resistance to the motion of the car was one fourth of the weight of the car
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Remove the zero from the speed, multiply the figure by itself and then multiply by 0.4. The figure 0.4 is taken from the fact that the braking distance from 10 km/h in dry road conditions is approximately 0.4 metres. This has been calculated by means of researchers measuring the braking distance.
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