Question

The braking distance of a car travelling at 110 kilometres per hour is 75 m.
Assuming the same braking force, calculate the braking distance for a car travelling at 145 kilometres per hour​

Answer 1

Answer:

285/ 145

Explanation:

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Answer 2

Answer:

130m

Explanation:

Fs = 1/2mv^2

F = breaking force

s = distance

if F and m is constant,

s = constant × v^2

s / v^2 = constant

s/145^2 = 75/110^2

hence, s = 130