Question

a car starting from rest is accelerated to uniformly to a velocity of 1oo.2km/h,a break is applied in 4seconds,find it acceleration converting from km/h to m/s
pls i need the answer now pls
100.2 km/hr * 1000m/km * 1hr/3600s = 27.83 m/s
assuming it accelerated during those 4 seconds, then
a = (27.83 m/s) / 4s = 6.958 m/s^2

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