H=196 m= gt^2/2
t=корень из 2H/g
h=H-h1
h1=g(t/2)^2/2= gt^2/2= 2gH/g8= H/4
h=H-h1=H-H/4=3H/4
h=3*196/4 =147 m
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H=196 m= gt^2/2
t=корень из 2H/g
h=H-h1
h1=g(t/2)^2/2= gt^2/2= 2gH/g8= H/4
h=H-h1=H-H/4=3H/4
h=3*196/4 =147 m