1 kg wt is equal to

Options

A. `9.8N`
B. `980N`
C. 98 N
D. `0.98` N

Answer

To determine the weight of a 1 kg mass, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Weight**:
- Weight is defined as the force exerted by gravity on an object. It is calculated using the formula:
\[ \text{Weight} (W) = \text{mass} (m) \times \text{acceleration due to gravity} (g) \]

2. **Identify the Given Values**:
- The mass \( m = 1 \, \text{kg} \)
- The acceleration due to gravity \( g \approx 9.8 \, \text{m/s}^2 \) (on the surface of the Earth)

3. **Substitute the Values into the Formula**:
- Using the formula for weight, we substitute the known values:
\[ W = 1 \, \text{kg} \times 9.8 \, \text{m/s}^2 \]

4. **Calculate the Weight**:
- Perform the multiplication:
\[ W = 9.8 \, \text{N} \]
- Therefore, the weight of a 1 kg mass is 9.8 Newtons.

5. **Select the Correct Option**:
- From the options provided:
- Option 1: 9.8 Newton
- Option 2: 980 Newton
- Option 3: 98 Newton
- Option 4: 0.98 Newton
- The correct answer is **Option 1: 9.8 Newton**.