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Just wanted to clarify that this was the right way to calculate the deceleration when braking from a speed of 100km/h when the braking distance of the car is 45.73m.

I am just using the formula v^2 = u^2 + 2as

Which i have rearranged to find a...

a = (v^2 - u^2)/2s ---------------- s = distance

And I converted the 100km/h to m/s

so....

a = (0 - 27^2) / 2 * 45.73

a = - 7.97ms/s

Is that right???

Or should I just leave the 100 in km...

and then by deceleration is like -100ms/s?

Thanks!

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# Car deceleration speed?

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