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Vo = 0
Vt = 72 km/ jam
t = 30 s
dit : a ?
dijwab :
Vt = (72 x1000)/3.600
= 72.000/3.600
= 20 m/s
a = (Vt-Vo)/t
= (20-0)/30
= 20 / 30 m/s²
= 0,667 m/s²