# Moment of Force...

Water flows out of a big tank along a horizontal tube $$AB$$ of length $$l$$ and radius $$r$$ and bent at right angles at the other end as shown in the figure. The rate of flow is $$Q m^3/s$$ . Calculate the magnitude of the moment of the force exerted by the water on the tube about the end $$A$$.

(The surface is horizontal, not as in the figure)

Take : Density of water=$$1kg/m^3$$, $$Q$$ = $$4m^3/s$$ , $$r$$=$$4m$$ , $$l$$=$$\pi$$(in $$m$$)

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