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R = 5N
Dit: F2
R = √F1²+F2²
5N = √4²+F2²
F2 = √5² - 4²
F2 = √25 - 16
F2 = √9
F2 = 3
Menurut aku sih gitu jwbnnya
mana yang belum ada ?
3. Ya berarti jawabnya 3 N.