Jawabanmu

2014-08-28T16:36:31+07:00
Diket: gb = 10 m/s², mp = 8 mb, Rp = 2 Rb
Dit: gp = ...?
Jwb:
gb  =   G × mb/Rb²
gp       G × mp/Rp²

gb/gp = mb/Rb² × Rp²/mp
gb/gp = mb/Rb² × (2Rb)²/8mb ⇒(mb_nya dicoret karena massanya sama)
gb/gp = 4Rb²/8Rb² ⇒(Rb²_nya juga d coret karena sama)
gb/gp = 4/8
gb/gp = 1/2
     gp = 2gb