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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two disks of masses m(1) and m(2) are connected by a spring of force constant k. The lower disk of mass m(2)lies on a table and the upper disk is vertically above it. What vertical force F should be applied to the upper disk so that when the force is withdraw, the lower disk is lifted off the table?

Two disks of masses m(1) and m(2) are connected by a spring of force constant k. The lower disk of mass m(2)lies on a table and the upper disk is vertically above it. What vertical force F should be applied to the upper disk so that when the force is withdraw, the lower disk is lifted off the table?

A block of mass M is connected with a particle of mass m by a light inextensible string as shown in fig. Assuming all contaction surfaces as smooth find the acceleration of the wedge after releasing the system.