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Jwb:
20 = 0 + a×2
20 = 2a
10 = a
Jadi Percepatannya adl 10 m/s²
Δt = 2 s
Δv = 72 km/jam
dit : a ?
dijawab :
Δv = 72 km/jam
= (72.1000)/3.600
= 72.000/3.600
= 20 m/s
a = Δv/Δt
= 20/2
= 10m/s²