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Verified answer
Energi kinetik dan energi potensial awal pelemparanEk = 1/2mVo² = 1/2 (0,5)(4²) = 4 Joule
Ep = mgh = 0,5(10)(10) = 50 Joule
Jadi, dengan menerapkan prinsip energi, maka energi kinetik benda sesaat sebelum menyentuh tanah adalah : 54 Joule