A block placed on a horizontal surface is being pushed by a force F making an angle `theta` with the vertical. If the friction coefficient is `mu`. How much force is needed to get the block just started. Discuss the situation when `tan thetaltmu`.

Explanation

To solve the problem of determining the force \( F \) needed to get the block just started on a horizontal surface when pushed at an angle \( \theta \) with the vertical, we will follow these steps:

### Step-by-Step Solution:

1. **Identify Forces Acting on the Block**:
- The weight of the block \( W = mg \) acts downward.
- The normal force \( N \) acts upward.
- The applied force \( F \) makes an angle \( \theta \) with the vertical, so we can resolve it into two components:
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