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4-1.Newton's Laws of Motion
easy
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
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.
Standard 11
Physics
