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In the shown figure mass of the pulley i...

In the shown figure mass of the pulley is m and radius 2R. A light concentric spool of radius R is rigidly attached with the pulley. Two blocks A and B having masses m & 4m respectively are attached with the pulley by means of light strings. Lower surface of the block B is attached to a spring of stiffness ka and block B rests on a smooth inclined plane inclined `30^(@)` with horizontal. Other end of the spring is fixed to the ground. The block A is stretched a small distance and released then find the frequency of the oscillation of block B. (The strings do not slip on the pulley).

Text Solution

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`2pi sqrt((10m)/(k))`
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