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# Bagaimana cara menghitung berat besi dgn ukuran tinggi= 100mm, lebar= 890mm, panjang= 1030mm?

by melly
Member since:
December 14, 2008
Total points:
1,714 (Level 3)

## Best Answer - Chosen by Voters

Caranya : P x L x T x BJ (berat jenis besi=7.850 kg/m3)
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• by kuya21
Member since:
November 25, 2007
Total points:
1,147 (Level 3)
ada cara praktis yg termudah :
( P dlm mm x L dlm mm X T dlm mm X Bj Besi ( 7.85)) / 1 jt = .......Kg
atau mudahnya Volume x Bj dan jangan lupa penyakitnya yaitu masalah satuan
• by hugs
Member since:
March 11, 2009
Total points:
581 (Level 2)
rumus menghitungnya,
BERAT = volume x massa jenis x percepatan gravitasi
volume = 0.1 x 0.89 x 1.03 = 0.09167 m3
massa jenis = 7800 kg/m3
percepatan gravitasi = 9,8 m/s2 (tergantung lokasi)

jadi, berat = 0.09167 x 7800 x 9.8 = 7007,25 Newton.........(kg.m/s2)
kalo massanya = 0.09167 x 7800 = 715,026 kg

jangan salah dengan satuan!!!!