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Verified answer
Vo = 0 (jatuh bebas)h = 15 m
g = 10 m/s²
t = __?
h = Vot + 1/2gt²
15 = 0 + 1/2(10)t²
15 = 5t²
t² = 15/5 = 3
t = √3
t = 1,73 sekon