- #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!