Questions
The time period of a mass suspended from a spring is T. If the spring is cut into four equal parts and the same mass is suspended from one of the parts, then the new time period will be
detailed solution
Correct option is B
By cutting spring in four equal parts force constant (K) of each parts becomes four times (∵ k ∝ 1l) so by using T = 2πmK; time period will be half i.e. T' = T2Talk to our academic expert!
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One end of an ideal spring is connected with a smooth block with the other end with rear wall of driving cabin of a truck as shown in figure. Initially, the system is at rest. If truck starts to accelerate with a constant acceleration ‘a’ , then the block (relative to truck ):
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