The effort applied to lift a 60 N box using a simple machine is 45 N. Find the MA of the machine.

Answer

To find the Mechanical Advantage (MA) of the simple machine, we can follow these steps:

### Step 1: Understand the terms
- **Load (Weight of the box)**: This is the weight of the object you are trying to lift, which is given as 60 N.
- **Effort**: This is the force applied to lift the load, which is given as 45 N.

### Step 2: Write the formula for Mechanical Advantage
The formula for Mechanical Advantage (MA) is:
\[ \text{MA} = \frac{\text{Load}}{\text{Effort}} \]

### Step 3: Substitute the values into the formula
Here, we substitute the values of Load and Effort into the formula:
\[ \text{MA} = \frac{60 \, \text{N}}{45 \, \text{N}} \]

### Step 4: Perform the division
Now, we divide 60 by 45:
\[ \text{MA} = \frac{60}{45} \]

### Step 5: Simplify the fraction
To simplify \( \frac{60}{45} \), we can divide both the numerator and the denominator by their greatest common divisor, which is 15:
\[ \text{MA} = \frac{60 \div 15}{45 \div 15} = \frac{4}{3} \]

### Step 6: Convert to decimal
Now, we can convert \( \frac{4}{3} \) to a decimal:
\[ \text{MA} \approx 1.33 \]

### Final Answer
The Mechanical Advantage (MA) of the machine is approximately **1.33**.

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