A 7.5 cm diameter jet of water strikes a curved plate at its centre with a velocity of 20 m/s
Civil UPSC ESE Exam Solution 2021
UPSC ESE Exam Solution 2021 for Civil Engineering UPSC ESE 2021 GS Paper 1 download exam paper from telegram https://telegram.me/civil_experiences
A 7.5 cm diameter jet of water strikes a curved plate at its centre with a velocity of 20 m/s. The curved plate is moving with a velocity of 8 m/s in the direction of the jet. The jet is deflected through an angle of 65°. By assuming the plate as smooth, what is the angle made by the relative velocity at the outlet of the plate?
Detailed Solution for Civil Engineering Exam
Since the jet is deflected by 165°, the relative velocity at the outlet will make an angle of 15° with the direction of plate movement. This is based on the assumption that for shockless exit, relative velocity should be tangential to the plate at the outlet.