Laws Of Motion Question 132

Question: A mass of 1 kg is suspended by a string A. Another string C is connected to its lower end. If a sudden jerk is given to C, then

Options:

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

Show Answer

Answer:

Correct Answer: B

Solution:

[b] 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.



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