" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
S = 750 m
Sa = v t
Sa = 20 • t
Sa = 20 t
Sb = Vo t + ½ a t²
Sb = 0 + ½ • 4 • t²
Sb = 2t²
Ketika kedua mobil saling bertemu,
Sa + Sb = S
20t + 2t² = 750
t² + 10t - 375 = 0
(t + 25) (t - 15) = 0
t = -25 [TM] atau t = 15 s
Sa = 20t
Sa = 20 • 15 = 300 m ←
Sb = 2t²
Sb = 2 • 15² = 450 m ←
Kefua mobil saling bertemu
• setelah bergerak selama 15 s
• setelah A menempuh jarak 300 m dan B menempuh jarak 450 m