A rod has a radius of 100 mm and a length of 10 cm. A 100 N force compresses along its length . Calculate the longitudinal stress developed in the rod.

Explanation

To calculate the longitudinal stress developed in the rod, we can follow these steps:

### Step 1: Identify the given values
- Radius of the rod (r) = 100 mm = 100 × 10^(-3) m
- Length of the rod (not needed for stress calculation)
- Force (F) = 100 N

### Step 2: Convert the radius into meters
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