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S ke barat = 12 kaki
S ke utara = 5 kaki
Benda tegak lurus
dit : R ?
dijawab :
R = √(12²+5²)
= √(144 + 25)
= √169
= 13 kaki
Besar Resultan = 13 kaki
Arah = Ke Barat Laut... (kamu bisa pakai pendekatanarah mata angin)
R = 12²+5²
= 169
Arah resultannya ke barat laut (coba gambar aja)