Question

Tolong dijawab yah please!!
sama pakai caranya
1.Rubah satuan besaran kesatuan m/
s!
a. 36 km/jam
b. 54 km/jam
c. 18 km/jam
2.Sebuah benda bergerak dengam kecepatan tetap 108 km/jam. berapa jarak tempuhnya selama:
a. 30 menit
b. 90 menit

Answer 1

NOMOR 1 :
a. 36 km/jm = (36x1000)/3.600
                  = 36.000/3.600
                  = 10 m/s

b. 54 km/jm = (54.000)/3.600
                  = 15 m/s

c. 18 km/jm = (18 x1000)/3.600
                  = 5 m/s

nomor 2 :
dik :
v = 108 km/jm
a. t = 30 menit = 0,5 jm
    s = v x t
       = 108 x 0,5
       = 54 km

b. t = 90 menit = 1,5 jm
   s = 108 x 1,5
     = 162 km

Answer 2

1.a 36 km/jam = 36000 m / 3600 s = 10 m/s
b. 54 km/jam = 54000 km / 3600 s = 15 m/s
c. 18 km/jam = 18000 m / 3600 s = 5 m/s

2. v = 108 km/jam
a. t = 30 menit = 0,5 jam
   s = v.t = 108 km/jam x 0,5 jam = 54 km
b. t = 90 menit = 1,5 jam
   s = v.t = 108 km/jam x 1,5 jam = 162 km