A tie-bar has a cross-section area of 125mm² and is subjected to a pull of 10kN. Calculate the stress in Megapascals​

The stress in Magapascals is 80 Magapascals

This question can be solved by applying Young's modulus.

Young's modulus : Young's modulus states that, stress  is directly proportional to strain.

Where Stress is pressure acting the body. The s.i unit of stress is N/m² or Pascal. And it can be expressed mathematically as,

From the question,

Pascals

80 Magapascals

Hence the stress in Magapascals is 80 Magapascals

Learn more about stress here :

The stress experimented by the tie-bar is 80 megapascals.

The tie-bar is under axial load. Under the assumption that force is distributed uniformly in the cross-section area, we can use the following definition of normal stress (), in megapascals:

(1)

Where:

- Axial force, in meganewtons.

- Cross-section area, in square meters.

If we know that and , then the stress experimented by the tie-bar is:

The stress experimented by the tie-bar is 80 megapascals.

whichever one it is, it's definitely not one that you included on the list you provided.