A block P of mass m is placed on a frictionle | vedclass

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Question

(b) When two blocks performs simple harmonic motion together then at the extreme position ( at amplitude $=A$) 

Restoring force $F = KA = 2ma$

Vedclass · Accepted Answer

$\frac{{kA}}{2}$

Vedclass · Answer

(b) When two blocks performs simple harmonic motion together then at the extreme position ( at amplitude $=A$) 

Restoring force $F = KA = 2ma$ $&rArr;$ $a = \frac{{KA}}{{2m}}$ 

There will be no relative motion between $P$ and $Q$ if pseudo force on block $P$ is less than or just equal to limiting friction between $P$ and $Q$.

i.e. $m\;\left( {\frac{{KA}}{{2m}}} ight) = $ Limiting friction 

$	herefore $ Maximum friction $ = \frac{{KA}}{2}$

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