Question

a mass of 1 kg is suspended by a string. Another string C is connected to its lower end. if a sudden pull is given to C then the portion BC breaks explain why.​

Answer 1

Answer:

When sudden pull is given to C, the string in the portion BC will break because this sudden pull due to force will impart an impulse in the string. There would not be enough time of transfer of energy from string BC to the upper string connecting the block to the ceiling.

Hope this answer is helpful.

Note: For a better understanding of this question a somewhat similar figure is attached

Answer 2

Answer:(a) portion of bc string will break

Explanation:

                (1) the (mg)mass of the object act towards down

                (2) the tension act both up and down

                (3) so,when a impulse is given to bc, it breaks.