Page 22 - IMPULS DAN MOMENTUM
P. 22

     =    +     
                                  ⃗
                            ⃗
                       ⃗
                             1
                        2
                     ∆   =      −     
                                      ⃗
                               ⃗
                        ⃗
                                       1
                                2
                        =    ∆  
                           ̅
                       ⃗
                                                                 MEMBUAT RENCANA
                               ⃗
                                           ⃗
                       ̅
                          =                  = ∆   ⃗⃗⃗
                           ∆  
                           ∆   ⃗
                       ̅
                          =
                           ∆  

                     =    +     
                             ⃗
                  ⃗
                        ⃗
                         1
                   2
                     = 10  m s ⁄ + (2  m s ⁄ )(5 s)
                                          2
                  ⃗
                   2
                     = 10  m s ⁄ + 10  m s ⁄
                  ⃗
                   2
                     = 20  m s ⁄
                  ⃗
                   2

                  ∆   =      −     
                                  ⃗
                          ⃗
                    ⃗
                                   1
                           2
                  ∆   = (0,1 kg)(20  m s ⁄ ) − (0,1 kg)(10  m s ⁄ )
                    ⃗
                                                                       MELAKSANAKAN RENCANA
                  ∆   = 2 kg  m s ⁄ − 1 kg  m s ⁄
                    ⃗
                  ∆   = 1 kg  m s ⁄
                    ⃗

                       ∆   ⃗  1 kg  m s ⁄  1 kg  m s ⁄
                  ̅
                     =    =            =
                       ∆         −    1   5 s − 0 s
                               2
                     = 0,2 kg  m s ⁄
                  ̅
                                  2
                     = 0,2 Newton
                  ̅

                  Cobalah cek nilai   
                                      ⃗
                       ∆       ⃗⃗⃗⃗⃗ −   ⃗⃗⃗
                                  ⃗
                                  ⃗
                                   1
                              2
                     =    =
                  ⃗
                       ∆        −    1
                              2
                                                                      MENGECEK KEMBALI
                       20  m s ⁄ − 10  m s ⁄  10  m s ⁄
                  ⃗
                     =                    =
                            5 s − 0 s          5 s
                     = 2  m s ⁄
                             2
                  ⃗

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