Question
Wed March 07, 2012 By: Uma Sridharan

A block is on a horizontal slabwhich is moving horizontally and executing S.H.M. The co-efficient of static friction b/w block & slad is miu.If the block is not separated from slab,then determine angular frequency of oscillation?

Expert Reply
Mon April 09, 2012
We can consider it as the slab and block is one system and it is attatched with a spring and the system is in SHM.
 
As the block will execute SHM due to friction , here the friction is internal force for the system of slab and block. So the w should be =(K/m+M)1/2 .
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