Which of these is the unit of weight?

Options

A. Pascal (Pa)
B. Kilogram (kg)
C. Kilogram force (kgf)
D. Newton per square metre `(N//m^(2))`

Answer

To determine the unit of weight, we can follow these steps:

### Step 1: Understand the Concept of Weight
Weight is the force exerted by gravity on an object. It is dependent on the mass of the object and the acceleration due to gravity.

### Step 2: Identify the Relationship Between Weight and Force
Weight (W) can be calculated using the formula:
\[ W = m \times g \]
where:
- \( W \) is the weight,
- \( m \) is the mass of the object,
- \( g \) is the acceleration due to gravity (approximately \( 9.8 \, \text{m/s}^2 \) on the surface of the Earth).

### Step 3: Determine the Unit of Weight
The unit of weight is the same as the unit of force. In the International System of Units (SI), the unit of force is the Newton (N). Therefore, the unit of weight is also the Newton.

### Step 4: Analyze the Given Options
Given the options:
1. Pascal (Pa) - This is the unit of pressure.
2. Kilogram (kg) - This is the unit of mass.
3. Newton (N) - This is the unit of force and also the unit of weight.

### Step 5: Conclusion
The correct answer is:
**Newton (N)** is the unit of weight.

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