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November 28, 2014

November 28, 2014

Posted by **mani** on Friday, March 23, 2012 at 3:18pm.

- physics -
**Elena**, Friday, March 23, 2012 at 3:57pmThe force according to the Newton’s 2 Law is

F= m•a=m•(Δv/Δt) =Δ(m•v)/ Δt

If the length of the moving stream is L and the density of water is ρ, then

F = (ρ•S•L•v)/(L/v) = ρ•S•v^2 =

=1000• 50•10^-4•(0.3)^2=0.45 N

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