From the diagram given below, answer the questions that follow:
What effort has to be applied at C to just raise the load L=20 kgf? (Neglect the weight of pulley A and friction).

Explanation

To solve the problem of determining the effort that needs to be applied at point C to just raise the load L = 20 kgf, we will follow these steps:

### Step-by-Step Solution:

1. **Understand the System**:
- We have a load (L) of 20 kgf that is being raised using a pulley system.
- The pulley system consists of a pulley (A) and a point (C) where the effort (E) is applied.

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