A stationary 4 cm diameter nozzle emits a water jet with a speed of 30 m/s. The water jet...

A stationary 4 cm diameter nozzle emits a water jet with a speed of 30 m/s. The water jet impinges on a vane with a mass of 15 kg. Recalling that water has a mass density of 1000 kg/m3, determine the minimum static friction coefficient with the ground such that the vane does not move if ϕ = 20° and θ = 30°. Neglect the weight of the water layer in contact with the vane as well as friction between the water and the vane.

Figure P5.123