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r = 4*0-3*0²+0³ = 0 meter
pada saat t2 = 2 sekon
r = 4*2-3*2²+2³ = 8-12+8 = 4 m
v rata-rata = Δr/Δt
v = (4-0)/(2-0) = 2 m/s
r = 4t-3t²+t³
dit=
v t₁= 0
v t₂ = 2s
jwb=
r t₁⇔ t=0⇒ 4(0)-3(0)²+(0)³
⇒0 m
r t₂⇔ t=2 ⇒4(2)- 3(2)²+(2)³
⇒8-12+ 8
⇒ 4 m
v=
v=
v=
v=
v= 2m/s