Mektek Statis Tertentu

1                    No . 1

                  Jawab :      ∑ HA = 0

                                    HA      = 0

                                    ∑ MA = 0

-          VB . 10 + P . 5      = 0

-          VB . 10 + 400 . 5 = 0

-          VB 10                   =          - 2000

VB                                    =    2000 =  200 kg     

                                                 10

                                    ∑ MB = 0

                                    VA . 10 – P . 5            = 0

                                    VA 10 – 400 . 5          = 0

                                    VA10 – 2000              = 0

                                    VA      =        2000 =  200 kg     

                 10

                                     VA      =          200 kg

                                    Kontrol ( Cek ) :          VA + VB = P

                                                            200 + 200 = 400

                                                            400 = 400 ( ok )