nomor 2 : dik : g = 10 ,/s² t = 3 s dit : Vt = g x t = 10 x 3 = 30 m/s
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whongaliemdiketahui : Vo = 0 (diam) Vt = 72 km/jam = m/s = 20 m/s t = 30 s ditanya : a Vt = Vo + a.t 20 = 0 + a . 30 20 = 30 a a = a = m/s² ....atau .. a = 0,67 m/s²
dik :
Vo = 0
Vt = 72 km/jam
Δt = 30 s
dit :a ?
dijwab :
Vt = (72x1000)/3.600
= 72.000/3.600
= 20 m/s
a = (Vt-V0)/Δt
= (20-0)/30
= 2/3 m/s²
= 0,667 m/s²
nomor 2 :
dik :
g = 10 ,/s²
t = 3 s
dit :
Vt = g x t
= 10 x 3
= 30 m/s
Vt = 72 km/jam = m/s = 20 m/s
t = 30 s
ditanya : a
Vt = Vo + a.t
20 = 0 + a . 30
20 = 30 a
a =
a = m/s² ....atau ..
a = 0,67 m/s²