September 2018 1 38 Report
Panjang papan bidang miring 10m &tinggi ujung atas papan di atas tanah 20m.bidang miring ITU dipakai memindahkan Peti yg beratnya 1000n ke ujung atas bidang miring
tentukan:
a.keuntungan mekanik bidang miring
b.jumlah org yg harus mendorong peti apabila gaya dorong setiap org 400n


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