s=(v^2-v_0^2)/2a
43 km/h = 11.94 m/sec
a=(v^2-v_0^2)/2s=(0-〖11.94〗^2)/(2·15)=-4.75 meter/〖sec〗^2
If a car moving at 86 km/h
86 km/h=23.89 m/sec
s=(0-〖23.89〗^2)/(2·(-4.75) )=60 metres
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