harus sama caranya klo ndak nanti saya akan hapus aja deh harus 1-8

1 . v = 2 m/detik
s = 480 m .
t = s : v
= 480 : 2
= 240 detik : 60 = 4 menit . ( C )

2 . t = 13.30 - 10.30 = 03.00
s = 240 km
v = s : t
= 240 : 3
= 80 km/jam ( A )

3 . s = 90 km
v = 45 km/jam .
t = s : v
= 90 : 45
= 2 jam
tiba = 13.00 + 02.00 = 15.00 wib ( D )

4 . v = 60 km/jam .
s = 270 km .
t = s : v
= 270 : 60
= 4 jam 30 menit .
berangkat = 16.30 - 04.30
= 12.00 ( A )

5 . t = 09 .30 - 06.00 = 03.30 - (15 × 2 ) = 03.30 - 00.30 = 03.00
v = 65 km/jam
s = v × t
= 65 × 3
= 195 km ( D )

6 . v = 10 l
t = 30 dtk = 30/60 = 1/2 menit .
Q = v : t
= 10 : 1/2
= 10 x 2/1
= 20 liter / menit ( B )

7 . Q = 8 liter/menit .
v = p x l x t
= 120 x 100 x 80
= 960.000 cm³ = 960 liter .
t = v : Q
= 960 : 8
= 120 menit = 2 jam ( A )

8 . t = 15 menit = 1/4 jam
Q = 20 liter/jam
v = Q x t
= 20 x 1/4
= 5 liter ( C )

semoga bermanfaat .....

1.  K = 2m/dtk       J = 480 m
     W = J : K = 480 m : 2m/dtk = 240 dtk = 4 mnt = C
2. Berangkat 10.30  Tiba = 13.30  J = 240 km
   K = J : W = 240 km : 3 jam = 80km/jam =  A
3.J = 90km   k = 45km/jam  berangkat = 13.00
   w = j : k = 90km : 45km/jam = 2 jam
     tiba pada pukul 15.00 = D
4.k = 60 km/jam  j = 270 km tiba 16.30
  w = j : k = 270 km : 60 km/jam = 4 jam 30 mnt
   berangkat pada pukul = 12.00 = A
5.berangkat 06.00 tiba 09.30  k = 65km/jam mobil berhenti 2kli msng2 15mnt
  j = w * k = 3jam * 65 km /jam = 195 km = D
6. v = 10litr w = 30 dtk 
    d = v : w = 10litr : 30 dtk = 0,3litr/dtk = 0,3litr : 1/60mnt = 0,3ltr * 60/1 mnt =20 = B
 7.d = 8litr/mnt  v = p * l * t = 120 * 100 * 80 = 960.000 cm = 960 liter
  w  =  v : d = 960litr : 8litr/mnt = 120 mnt = 2 jam = A
8.w = 15mnt = 1/4 jam  d = 20 ltr/jam 
    v = d * w =20 ltr/jam * 1/4 jam = 5 litr  = C