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P = ΔEp/t
m₂g₂h₂ - m₁g₁h₁
P = ________________
t
mg (h₂ -h₁)
P = ___________
t
2000 • 10 (10 - 0)
P = ______________
50
20000 • 10
P = ___________
50
P = 4000 Watt
P = 4 kWatt
Jadi, daya angkat mesin itu adalah 4 kWatt