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g = 10 m/s²
h = .....?
Menggunakan rumus Energi Mekanik:
Emekanik
Epotensial = Ekinetik
m . g . h = 1/2 . m . v²
2 . g . h = v²
2 . 10 . h = 30²
20 . h = 900
h = 900 / 20
h = 45 meter
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