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Newton's Laws of Motion — JEE physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceJEE physicsNewton's Laws of Motion1 Mark
MCQ
In the above Question, if the string $C$ is stretched slowly, then
  • ✓
    The portion $A B$ of the string will break
  • B
    The portion $B C$ of the string will break
  • C
    None of the strings will break
  • D
    None of the above
✓

Answer

Correct option: A.
The portion $A B$ of the string will break
When the spring $C$ is stretched slowly,thetensionin (A) isgreaterthanthatof $(C)$,because of the weight $m g$ and the former reaches breaking point earlier.

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