Gunakan rumus kesetimbangan benda.
  
  Bandingkan contoh soal nomor 2 di halaman berikut :
  http://gurumuda.net/contoh-soal-kesetimbangan-benda-tegar.htm
  
  On 8/3/13, Patrick Prayoga <patrick_prayoga@yahoo.com> wrote:
  > Coba 300 kg di 3 meter dari poros sumbu, dan 200 kg di 2 meter dari poros
  > sumbu. Gmn?
  
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