Answers

2015-07-01T00:46:20+05:30
S = ut + 1/2gt^2
Since u = 0 we get
S = 1/2gt^2
S=1/2 * 9.8 t^2
4.9t^2

Therefore s = 4.9 t^2
Where s is the height
1 5 1
2015-07-01T17:12:11+05:30
S=ut+1/2*a*t²
u=0
s=h
a=9.8 m/s²
h=0*t+1/2*9.8*t²
h=4.9t²
h/4.9=t²
√h/√4.9=t
√(h/4.9)=t
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