Find minimum normal force to be each hand to hold there identical books in verticle position Each books has mass `m` and the value of coefficient of friction between the books as well as between hand and the book is `mu`

Find the minimum value of horizontal force (F) required on the block of mass m to keep it at rest on the wall. Given the coefficient of friction between the surfaces is mu .

A man holds a 2 kg book between his palms so that each hand exerts the same horizontal force on the book.The coefficient of static friction between the palms and the book is 0.4 and g= 10m s^(-2) .If the book is prevented from falling,the least force exerted by each hand on the book is ?

There are n different books and p copies of each in a library. Find the number of ways in which one or more than one books can be selected.

Work is done when we hold a pile of books in our hands.

A book sits on a horizontal top of a car which accelerates horizontally from rest. If the static coefficient of friction between car top and book is 0.45 , what is the maximum acceleration the car can have if the book does not slip ? (g = 10 ms^(-2))

For the arrangement shown in the figure the coefficient of friction between the two blocks is mu . If both the blocks are identical and moving ,then the acceleration of each block is

A student holds a book of mass 2kg between his hands.Each hand exerts horizontally a force of 50N .Then the coefficient of static friction is

Chain of mass M length L kept on rough sphere. mu is coefficient if friction between sphere and chain F is minimum force required to slide chain