Page 24 - MODUL FLUIDA STATIS
P. 24

MAGISTER PENDIDIKAN FISIKA
                                                               UNIVERSITAS AHMAD DAHLAN YOGYAKARTA




                                                    KUNCI JAWABAN
               TUGAS 1

               1.  Diketahui :

                                     3
                      = 1 gr/cm  = 10  kg/m 3
                               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 )
                                 −
                                  4
                     v =  , 2  25 10 m / det
                 3.  Diketahui:

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




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