Questions
A block is suspended by a spring and the elongation of the spring is found to be 10 cm. The block is now pulled downward by further 5 cm and released. Then frequency of oscillation of the block is (Take g = 10 m/s2)
detailed solution
Correct option is A
If x0 be the static elongation produced in the spring, then x0=mg/K. Time period of oscillation, T=2πmK=2πx0g∴ Frequency f=1T=12πgx0=12π100.1Hz=5π HzTalk 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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