Solve this question. I don't understand
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u=0
s=ut+at²/2
H=gt²/2
equation 1
now distance travelled in time t/2 is
s=g(t/2)²/2
s=gt²/8
equation 2
divide equation 1 from 2
s/H=1/4
s=H/4
But this is the distance from height H
therefore distance from ground is H - H/4 =3H/4
s=ut+at²/2
H=gt²/2
equation 1
now distance travelled in time t/2 is
s=g(t/2)²/2
s=gt²/8
equation 2
divide equation 1 from 2
s/H=1/4
s=H/4
But this is the distance from height H
therefore distance from ground is H - H/4 =3H/4
Anonymous:
thanks
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