Question

GLBB 1 dan 2 bantuin ya. Butuh banget jawaban

Answer 1

1. a = Δv/t = 20m/s / 5s = 4m/s²
    s = Vo.t + 1/2a.t²
   s = 20m/s . 5s + 1/2 . 4m/s . 5²s
   s = 100m + 50m = 150m
2.  72km/jam = 20m/s
     a = (0-20m/s)/t = (-20m/s)/t
     s = 20m/s . t + 1/2 . (-20m/s) . t
     40m = 20m/s . t + -10m/s .t
     40m = 10m/s (t)
     t      =  40m/(10m/s)
     t      = 4s