Question
Question: A mass of 1 kg is suspended by a string A. Another string C is connected to its lower end (see figur...
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
A
The portion AB of the string will break
B
The portion BC of the string will break
C
None of the strings will break
D
The mass will start rotating
Answer
The portion BC of the string will break
Explanation
Solution
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.