A block of mass m is kept on a horizontal table. If the static friction coefficient is `mu`., find the frictional force acting on the block.

Explanation

To solve the problem of finding the frictional force acting on a block of mass \( m \) placed on a horizontal table with a static friction coefficient \( \mu \), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Forces Acting on the Block**:
- The block has a weight \( W = mg \) acting downwards, where \( g \) is the acceleration due to gravity.
- There is a normal force \( R \) acting upwards from the table on the block.

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