vt^2 = 2g(h1-h2) = 2x10x3=60 energi kinetik Ek= 1/2 x mxvt^2 = 1/2 x 2 x 60 = 60 J
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DavidHuku
Dik: m = 2Kg h₁ = 4m h₂ = 1m Dit: Ep & Ek = ...? Jawab: 1) Ep = m . g . h₂ = 2 . 10 . 1 = 20J 2) Cari v untuk Rumus Ek v² = 2gΔh = 2. 10 . (4 - 1) = 60m/s 3) Ek = ½ . m . v² = ½ . 2 . 60 = 60J
h2= 1 m
energi potenaial Ep = mxgxh = 2x10x1 = 20 J
vt^2 = 2g(h1-h2) = 2x10x3=60
energi kinetik
Ek= 1/2 x mxvt^2 = 1/2 x 2 x 60 = 60 J
m = 2Kg
h₁ = 4m
h₂ = 1m
Dit:
Ep & Ek = ...?
Jawab:
1) Ep = m . g . h₂
= 2 . 10 . 1
= 20J
2) Cari v untuk Rumus Ek
v² = 2gΔh
= 2. 10 . (4 - 1)
= 60m/s
3) Ek = ½ . m . v²
= ½ . 2 . 60
= 60J