Mechanical advantage is ratio of

Options

A. impure quantities
B. pure quantities
C. similar quantities
D. dissimilar quantities

Explanation

To solve the question "Mechanical advantage is the ratio of:", we can break it down into the following steps:

### Step 1: Understand the Definition of Mechanical Advantage
Mechanical advantage (MA) is defined as the ratio of the load (output force) that a machine can lift to the effort (input force) that is applied to the machine.

### Step 2: Identify the Components of Mechanical Advantage
- **Load**: This is the weight or force that the machine is designed to lift or move.
- **Effort**: This is the force that is applied to the machine to lift the load.

### Step 3: Write the Formula for Mechanical Advantage
The formula for mechanical advantage can be expressed as:
\[ \text{Mechanical Advantage (MA)} = \frac{\text{Load}}{\text{Effort}} \]

### Step 4: Analyze the Nature of Load and Effort
Both load and effort are types of forces. Since they are both forces, they are considered similar quantities.

### Step 5: Conclusion
Since mechanical advantage is the ratio of load to effort, and both load and effort are similar quantities (both being forces), we conclude that the correct answer is:
**Mechanical advantage is the ratio of similar quantities.**

### Final Answer
The correct option is **C: Similar Quantities**.

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