# If the length of a rod has becomes half by cutting it, how much load it can bear before breaking as compare to before?

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If the length of a rod has becomes half by cutting it, how much load it can bear before breaking as compare to before?
3. the same as before
4. cannot be determined

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Correct Answer - Option 3 : the same as before

CONCEPT:

• Breaking Stress: It is also called ultimate tensile stress. It is the maximum stress a material can stand before it breaks.
• Tensile stress:  The force applied along a rod divided by the cross-sectional area of the rod perpendicular to the applied force is called tensile stress.
$\rm Tensile \ stress = \dfrac{Force}{Cross \ section \ area}$

EXPLANATION:

• From the definition, it is clear that the breaking stress of a rod does not depend on its length. So,
• If we half the length of the rod, the force required to break it will remain the same.
• So it can bear the same load as before.
• Hence the correct answer is option 3.