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Vo = 15 m/s
a = 2m/s²
Vt = 0
dit : Δt ?
dijawab :
a = (Vo-Vt)/Δt
2 = (15-0)/Δt
2xΔt = 15
Δt = 15/2
Δt = 7,5 s
vo=15 m/s
a= (-2m/s) perlambatan
vt=0 m/s
dit: t=...?
a=vt-vo/t
-2=0-15/t
t=-15/-2=7,5 sekon