MHT CET2012PhysicsLaws of Motion
A mass of 1 ~kg is suspended by a string A . Another string C is connected to its lower end as shown in figure. If a sudden jerk is given to C , then
Options
- Athe mass will start rotating
- Bthe portion A B of the string will break
- Cthe portion B C of the string will break
- DNone of the string will break
Correct answer
C. the portion B C of the string will break
Step-by-step 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.