363608
A mass of 1 \(kg\) is suspended by a string \(A\). Another string \(C\) is connected to its lower end (see figure). If a sudden jerk is given to \(C\), then
1 Then portion \(AB\) of the string will break
2 The portion \(BC\) of the string will break
3 None of the strings will break
4 The mass will start rotating
Explanation:
When a sudden jerk is given to \(C\), an impulsive tension exceeding the breaking tension develops in \(C\) first, which breaks before this impulse can reach \(A\) as a wave through block.
