A lever has a mechanical advantage of 4. What would be the mechanical advantage if the load and effort were interchanged?

Explanation

To solve the problem step by step, we will follow the definitions and relationships associated with mechanical advantage in levers.

### Step-by-Step Solution:

1. **Understanding Mechanical Advantage (MA)**:
- Mechanical Advantage is defined as the ratio of the load (output force) to the effort (input force) applied to the lever.
- The formula for Mechanical Advantage is:
\[
...