Jawabanmu

2014-09-03T20:42:38+07:00
Dik :
h = 125 m
Vo= 10 m/s
t =?

h =  \frac{1}{2} . g. t^{2}
125 =   \frac{1}{2} .10. t^{2}
125 =  5t^{2}
 t^{2} = \frac{125}{5}
 t^{2} = 25
t =  \sqrt{25}
t = 5 sekon

jarak mendatar

x = Vo.t + 1/2.a.t²
x = 0. 5 + 1/2.10.5²
x = 125 m

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