A garden horse of diameter 2cm is used to fill a 5 litre plastic container. It takes 30s to fill the plastic container.

A garden horse of diameter 2cm is used to fill a 5 litre plastic container. It takes 30s to fill the plastic container.
(a)    Determine the speed at which the water enters the horse
(b)    The open end of the horse is squeezed to I diameter of 10mm. What is the speed at which water comes out of the horse?

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