Answer:
1km/h^2 = 5/648 cm/s^2 [about 7.7 x 10^(-3) /s^2]
Step-by-step explanation:
1km = 10^3 m = 10^5 cm
1h = 60x60 = 3600s
--> 1km/h^2 = 10^5 cm / (3600^2) s^2
<=> 1km/h^2 = 5/648 cm/s^2 [about 7.7 x 10^(-3) /s^2]
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