Question
Download Solution PDFThe perpendicular force to flow exerted by a jet on stationary inclined flat plate = _____ , when velocity of jet = 20m/s, angle between jet and plate = 60° and area of cross section of jet = 0.01 m2
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Vr = relative velocity of the jet with respect to the plate
- When the plate is moving (u) in the direction of the jet (V) i.e. away from the jet: Vr = V - U
- When the plate is moving (U) in the opposite direction of the jet (V) i.e. towards the jet: Vr = V + U
Force exerted by the jet on the plate in the direction normal to the plate:
Force exerted by the jet on the plate in the direction of the jet (Fx) and is perpendicular to the direction of flow (Fy)
Calculation:
Given, velocity of jet = 20 m/s
Angle between jet and plate = 60° and area of cross-section of jet = 0.01 m2
Flate plate is stationary, Then
Relative velocity of the jet with respect to the plate(Vr) = 20 - 0 = 20 m/s
The perpendicular force to flow exerted by a jet on a stationary inclined flat plate,
Fy = ρAVr2 sin θ cos θ
Fy = 1000 × 0.01 × 202 × sin 60 × cos 60
Fy = 1732.05 N.
Last updated on Jul 1, 2025
-> SSC JE notification 2025 for Civil Engineering has been released on June 30.
-> Candidates can fill the SSC JE CE application from June 30 to July 21.
-> SSC JE Civil Engineering written exam (CBT-1) will be conducted on 21st to 31st October.
-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.
-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.
-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.
-> The Staff Selection Commission conducts the SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.