The huka falls on the waikato river is one of new zealand's most visited natural tourist attractions. on average the river has a flow rate of about 300,000 l/s. at the gorge, the river narrows to 18 m wide and averages 22 m deep.(a) what is the average speed (in m/s) of the river in the /s.(b) what is the average speed (in m/s) of the water in the river downstream of the falls when it widens to 63 m and its depth increases to an average of 42 /s.