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W = 80 ton = 8.10⁴ kg
E = 150 J
g = 10 N/kg
m = W/g
m = 8.10⁴ / 10
m = 8.10³
dicari
h ...................... ?
jawab
Ep = mgh
Ep = Wh
150 = [ 8.10³] h
h = 150/[8.10³]
h = 0,01875 m