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Δx = F/k
Δx = 15 / 300 = 0,05m = 5cm
energi potensial pegas = 1/2 x k x (Δx)²
= 1/2 x 300 x (0,05)²
= 0,375 joule
F= 15 N
ditanyakan : Ep:...?
jawab : Ep= 1/2 k. Δx^2
Δx= F/k= 15/300= 0,05 m
Ep= 1/2 × 300 × (0.05) (0,05) = 1/2 0,75= 0,375 joule