A water jet of diameter 2 inches and speed v = 60 ft /s is fi lling a tank. Th e tank has a mass of 25 lbm and contains 6 gallons of water at the instant shown. Th e water temperature is 70°F. Find...

A water jet of diameter 2 inches and speed v = 60 ft /s is fi lling a tank. Th e tank has a mass of 25 lbm and contains 6 gallons of water at the instant shown. Th e water temperature is 70°F. Find the minimum coeffi cient of friction such that the force acting on the stop block is zero