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EK₁ + EP₁ = EM₂
¹/₂. m . v² + m . g . h = EM₂
¹/₂ . 1 . 2² + 1 . 10 . 2 = EM₂
2 + 20 = EM₂
EM₂ = 22 Joule
Jadi, energi mekanik bola pada ketinggian 1 meter dari tanah adalah 22 Joule