Q2. A 40 mm diameter jet has a velocity of 25 m/s. Calculate the resultant force on a large flat plate if this jet were to strike it normally.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Please show units throughout each step subject is fluid mechanics
**Question 2:** A 40 mm diameter jet has a velocity of 25 m/s. Calculate the resultant force on a large flat plate if this jet were to strike it normally.

This problem involves fluid dynamics and specifically relates to the impact force of a jet of fluid on a surface. Given the jet diameter and velocity, the task is to determine the force exerted when the jet impacts a flat plate perpendicularly. The formula for calculating the force typically involves the mass flow rate and the change in velocity as the fluid comes to a stop upon striking the plate. To calculate this, you will need to consider:

1. **Area of the Jet (A):** Calculate the cross-sectional area of the jet using the diameter.
2. **Velocity of the Jet (V):** Given as 25 m/s.
3. **Density of the Fluid (ρ):** Often assumed to be water in introductory problems unless stated otherwise (approximately 1000 kg/m³).
4. **Force Calculation:** Use the formula for calculating force based on change in momentum.

Keep in mind that there are no graphs or diagrams provided in this question.
Transcribed Image Text:**Question 2:** A 40 mm diameter jet has a velocity of 25 m/s. Calculate the resultant force on a large flat plate if this jet were to strike it normally. This problem involves fluid dynamics and specifically relates to the impact force of a jet of fluid on a surface. Given the jet diameter and velocity, the task is to determine the force exerted when the jet impacts a flat plate perpendicularly. The formula for calculating the force typically involves the mass flow rate and the change in velocity as the fluid comes to a stop upon striking the plate. To calculate this, you will need to consider: 1. **Area of the Jet (A):** Calculate the cross-sectional area of the jet using the diameter. 2. **Velocity of the Jet (V):** Given as 25 m/s. 3. **Density of the Fluid (ρ):** Often assumed to be water in introductory problems unless stated otherwise (approximately 1000 kg/m³). 4. **Force Calculation:** Use the formula for calculating force based on change in momentum. Keep in mind that there are no graphs or diagrams provided in this question.
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What is the unit for the value of 1000, is that value a constant, and are there different variations of that value like 1.94 slugs

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