A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass rt is slightly pulled down and released, it oscillates with a time period of $$3s$$. When the mass m is increased by $$1$$ kg, the time period of oscillations becomes $$5$$ s. The value of min kg is :

Question

Infinity Learn · Accepted Answer

$$T=2$$$$π$$mk        $$3=2$$$$π$$mk                                   ....(1)        $$5=2$$$$π$$$$m+1k$$                             .....(2)         $$1222$$⇒$$925=mm+1$$⇒$$m=916$$

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