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h = 2,9 m
g = 10 m/s
karena GJB maka v0 = 0
ditanya: vt = ...
peny:
t = √2h/g = √2*2,9/10 = √0,58 = 0,76 = 0,8 s
v = g*t = 10*0,8 = 8 m/s^2 (d)
maaf ya kalau salah~