MkaylaasJoie
MkaylaasJoie MkaylaasJoie
  • 17-12-2015
  • Physics
contestada

Calculate the height from which a body is released from rest if its velocity just before hitting the ground is 30ms

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danyaal99
danyaal99 danyaal99
  • 17-12-2015
S= ?
U= 0 [tex] ms^{-1} [/tex]
V= 30 [tex] ms^{-1} [/tex]
A= 9.8 [tex] ms^{-2} [/tex]
T= 

[tex]V^2 = U^2 + 2AS[/tex]
[tex]900 = 19.6S[/tex]
[tex] \frac{900}{19.6} = S[/tex]
S = 45.92 [tex] m [/tex]
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