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Verified answer
USAHA dan ENERGIW = ???
∑ F = F₁ + F₂ₓ
∑ F = F₁ + F₂ cos 60°
∑ F = 10 + (10 × ½) = 15 N
W = ∑ F s
W = 15 × 2 = 30 Joule