What is the upward buoyant force exerted by

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Chapter14: Fluid Mechanics
Section: Chapter Questions
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**Problem Statement:**

A wooden crate has a mass of 2 kg and it is floating halfway submerged in water. What is the upward buoyant force exerted by water \(1000 \, \text{kg/m}^3\) on the crate?

**Explanation:**

To solve this problem, we need to apply Archimedes' principle, which states that the buoyant force on a submerged object is equal to the weight of the fluid displaced by the object.

**Key Details:**

1. **Mass of the Crate:**
   - The crate's mass is 2 kg.

2. **Density of Water:**
   - The density of water is \(1000 \, \text{kg/m}^3\).

3. **Submersion Level:**
   - The crate is floating halfway submerged.

**Solution Steps:**

- The weight of the crate (\(W\)) is given by:
  \[
  W = \text{mass} \times \text{gravity} = 2 \, \text{kg} \times 9.8 \, \text{m/s}^2 = 19.6 \, \text{N}
  \]

- Because the crate is floating, the upward buoyant force (\(F_b\)) must be equal to the weight of the crate:
  \[
  F_b = 19.6 \, \text{N}
  \]

Thus, the upward buoyant force exerted by the water on the crate is \(19.6 \, \text{N}\).
Transcribed Image Text:**Problem Statement:** A wooden crate has a mass of 2 kg and it is floating halfway submerged in water. What is the upward buoyant force exerted by water \(1000 \, \text{kg/m}^3\) on the crate? **Explanation:** To solve this problem, we need to apply Archimedes' principle, which states that the buoyant force on a submerged object is equal to the weight of the fluid displaced by the object. **Key Details:** 1. **Mass of the Crate:** - The crate's mass is 2 kg. 2. **Density of Water:** - The density of water is \(1000 \, \text{kg/m}^3\). 3. **Submersion Level:** - The crate is floating halfway submerged. **Solution Steps:** - The weight of the crate (\(W\)) is given by: \[ W = \text{mass} \times \text{gravity} = 2 \, \text{kg} \times 9.8 \, \text{m/s}^2 = 19.6 \, \text{N} \] - Because the crate is floating, the upward buoyant force (\(F_b\)) must be equal to the weight of the crate: \[ F_b = 19.6 \, \text{N} \] Thus, the upward buoyant force exerted by the water on the crate is \(19.6 \, \text{N}\).
Expert Solution
Step 1

Given:

Mass of the wooden crate=2 kg 

Let density of wood crate be Dwc=600 kg/cm3

Density of Water Dw=1000Kg/cm3

To Find:

Buoyant Force Fb=?

 

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