50. A 100 g mass stretches a particular spring by9.8 cm, when suspended vertically from it. Howlarge a mass must be attached to the spring if theperiod of vibration is to be 6.28 s?

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Q. A

100 g

mass stretches a particular spring by

9.8 c m,

when suspended vertically from it. How large a mass must be attached to the spring if the period of vibration is to be

6.28 s

Q. A force of

6.4 N

stretches a vertical spring by

0.1 m

. The mass that must be suspended from the spring so that it oscillates with a period of

(π / 4)

seconds is

A mass of 0.3 Kg is attached to the end of a spring. If another mass of 0.04 Kg is added to the end of the spring, it stretches by 12 cm more. What would be the period of vibration of the system if 0.04 kg mass is removed?

Q. When a mass of 0.5 kg is suspended from the free end of a spring, it stretches the spring by 0.2 m. This mass is removed and 0.25 kg mass is attached to the same free end of the spring. If the mass is pulled down and released, what is the time period of oscillations?(g= 10

m s^{- 2}

)

Q. A

8 k g

mass is attached to a spring and allowed to hang in the Earths gravitational field. The spring stretches

2.4 c m

before it reaches its equilibrium position. If allowed to oscillate, what would be its frequency?

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