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m = 2400 kg
g = 10 m/s²
h = 80 m
t = 1 menit = 60 s
P = ___ ?
usaha
Usaha = perubahan energi potensial
W = Ep
= m g h
daya
Daya = usaha setiap satuan waktu
P = W / t
= m g h / t
= 2400 · 10 · ·80 / 60
= 32000 W ← jwb