Jawaban:
Ep = 8. 10⁻³ J
Penjelasan:
Konstanta Pegas
k = F/Δx = m.g/Δx
k = 50.10⁻³. 10/( 25.10⁻²- 20.10⁻²)
k = 0,5/(5.10⁻²)
k = 10 N/m
Energi Potensial Pegas
Ep = 1/2. k. x²
Ep = 1/2. 10. ( 4.10⁻² )²
Ep = 5. 16. 10⁻⁴
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Jawaban:
Ep = 8. 10⁻³ J
Penjelasan:
Konstanta Pegas
k = F/Δx = m.g/Δx
k = 50.10⁻³. 10/( 25.10⁻²- 20.10⁻²)
k = 0,5/(5.10⁻²)
k = 10 N/m
Energi Potensial Pegas
Ep = 1/2. k. x²
Ep = 1/2. 10. ( 4.10⁻² )²
Ep = 5. 16. 10⁻⁴
Ep = 8. 10⁻³ J