A block of mass m, lying on a rough horizontal plane is acted upon by force P and another force Q, incline at angle theta to vertical. The block will remain in equilibrium if minimum coefficient of friction between it and surface is:
A block p of mass m is placed on a frictionless horizontal surface. Another block a of same mass is kept on p and conected to the wall with the help of a spring constant k Mus is the coefficient of friction between p and a.The block move together performing SHM of amplitude A.The maximum value of friction force between p and q is
