1.

Two books of mass 1 kg each are kept on a table, one over the other. The coefficient of friction on every pair of contacting surfaces is 0.3. The lower book is pulled with a horizontal force F. The minimum value of F for which slip occurs between the two books is

A. zero
B. 11.77 N
C. 5.88 N
D. 8.83 N
Answer» C. 5.88 N


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