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Kinematika- GLB
Dik : v₁ = 54 km/jam = 15 m/s
v₂ = 72 km/jam = 20 m/s
= 150 m
Dit :
a. = _ ?
Jarak yang ditempuh Sedan setelah 2 detik :
S = v₂ t
S = 20 × 2
S = 40 m
Jarak yg ditempuh Truk setelah 2 detik :
S = v₁ t
S = 15 × 2
S = 30 m
Sehingga Jarak keduanya Setelah 2 detik :
= 150 - 40 + 30
= 140 m
b. Sedan menyalip Truk , berarti :
+ 150
v₂ t = v₁ t + 150
20t = 15t + 150
5t = 150
t = 30 s
Atau pada jam 12 : 00 : 30