no 1mohon dikerjakan in pelajaran ipa bsk di kumpul

Balok : 10 × 5 × 2
Vc = 100%
ro air 1000 kg/m³
ro balok 3600 kg/m³

a. Gaya apung
Fa = Ro g V
Fa = 1000 . 10 . 5 . 2. 10
Fa = 1000000 N

b.W balok
Fa = Wu - Wf
Masaa balok di udara?
p.v
3600 . 100 = 360000 kg
Fa = Wu-Wf
1000000 = 360000 . 10 - Wf
1000000 = 3600000 - Wf
- 2600000 = -Wf
Wf = 2600000 N

C. gaya apung jika tenggelam 3/4


Fa = Ro g Vc
Fa = 1000.10.¾.5.10.2
= 750000 N