A block A of mass 4 kg is placed on anot...

A block A of mass 4 kg is placed on another block B of mass 5 kg , and the block B rests on a smooth horizontal table . For sliding block A on B , a horizontal force of 12 N is required to be applied on A How much maximum force can be applied on B so that both A and B move togrther ? Also find out acceleration produced by this force .

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The correct Answer is:

(a) 27 N (b) `3 ms^(-2),15 N,1.67 ms^(-2)`

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