- #1
sg001
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Homework Statement
The problem relates to a water tank see link
http://www.phys.unsw.edu.au/~jw/1131/IntroLS.pdf
and scoll down a little!
Homework Equations
The Attempt at a Solution
so I think to go about this problem I need to use a conservation of energy approach.
ie ke(i) + gpe(i)= ke(f) + gpe(f)
so...
initially the tap is not realesed thererore there is no kinetic energy at this time
if I add the element (h) height, I can say the system at this a t=0 has gpe = (M + m)g(h)
Hence, (M+m)g(h) = 1/2mv^2
therefore, v^2 = (2(M+m)g(h))/m
v= √ (2(M+m)g(h))/m (m/s)
Is this approach correct.
And I am assuming that the tank would keep on going in the -x direction as the surface is frictionless...correct?
And can I introduce the element (h)?
Or would I have to use calculus to find a solution?
Any help is appreciated!