Page 29 - fluidastatis

MAGISTER PENDIDIKAN FISIKA
UNIVERSITAS AHMAD DAHLAN YOGYAKARTA

KUNCI JAWABAN
TUGAS 1

1. Diketahui :

3
3
 = 1 gr/cm = 10 kg/m 3
2
g = 10 m/det
h = 20 cm = 0,2 m

Ditanya : P

Jawab :
P  
gh
P  10  10  2 , 0
3
P  2  10 N / m 2
2
2. Diketahui:
r = 1 cm = 0,01 m
2
g = 10 m/det
3
3
3
 b = 12 gr/cm = 12 × 10 kg/m
3
3
 f = 3 gr/cm = 3 × 10 kg/m 3
3
 = 8 × 10 Ns/m 2
Ditanya : v
Jawab:

2
( 2    ) g
r
v  b f
g
( 2 12  ) 3 10 3 .( , 0 01 ) 2 ( 10 )
v 
10 8 (  10 3 )
v  , 2 25 10 m / det
4

3. Diketahui:

h = 5 m
2
A = 50 m
5
P o = 10 Pa
2
g = 10 m/s
2
ρ = 1000 kg/m

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