Water jet exiting to atmosphere

I am a 2nd semester UG Mechanical Engineering student and have no background in CFD and COMSOL. I was given a project by my fluid mechanics professor and was sort of stuck

I need to simulate a water jet exiting a nozzle and striking a plate. I need to find the pressure at the points that it strikes the plate and also the volume flow rate of the water exiting the nozzle.

If someone could provide a tutorial similar to my problem, I would really appreciate it.