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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A slender rod of mass m and length L is pivoted about a horizontal axis through one end and released from rest at an angle of 30∘ above the horizontal. The force exerted by the pivot on the rod at the instant when the rod passes through a horizontal position is

A slender rod of mass m and length L is pivoted about a horizontal axis through one end and released from rest at an angle of 30∘ above the horizontal. The force exerted by the pivot on the rod at the instant when the rod passes through a horizontal position is

a block of mass M is connected as shown and to other end in (a) a force of 2Mg and in (b) a block of mass 2M. Let angular acceleration of the disk in A and B is α A and α B ​ A cord is wrapped on a pulley (disk) of mass M and radius R as shown in figure. To one end of the cord respectively then :(cord is not slipping on the pulley)