What will be the resultant force it two 20N forces are applied in the opposite direction?

Options

A. 0N
B. 20N
C. 40N
D. 80N

Answer

To solve the problem of finding the resultant force when two 20N forces are applied in opposite directions, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Forces**: We have two forces, both with a magnitude of 20N. Let's denote them as:
- Force 1 (F1) = 20N (to the right)
- Force 2 (F2) = 20N (to the left)

2. **Determine the Direction**: Since the forces are applied in opposite directions, we can assign a positive direction to one force and a negative direction to the other.
- F1 = +20N (right)
- F2 = -20N (left)

3. **Calculate the Resultant Force**: The resultant force (R) can be calculated by adding the two forces together:
\[ R = F1 + F2 \]
Substituting the values:
\[ R = 20N + (-20N) = 20N - 20N = 0N \]

4. **Conclusion**: The resultant force is 0N. This means that the forces are balanced, and there is no net force acting on the object.

### Final Answer:
The resultant force when two 20N forces are applied in opposite directions is **0N**.

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