A plane is held by a chain AB through hinge joints. The plate is pulled with a force T as shown in figure. The tension in the chain is given by

Q. A square plate is hinged as shown in figure and it is held stationary by means of a light thread as shown in figure. Then find out the force exerted by the hinge.

Q. A rod $OA$ of mass $4kg$ is held in horizontal position by a massless string $AB$ as shown in figure. Length of the rod is $2m$. Find
(a) tension in the string.
(b) net force exerted by hinge on the rod. $(g=10m/s^2)$.

Q. A rod OA of mass $4kg$ is held in horizontal position by a massless string AB as shown in figure. Length of the rod is $2m$. Find net force exerted by hinge on the rod. (g= $10m/s^2$)

Q. A block of mass $M$ is pulled by a uniform chain of mass $M$ tied to it by applying a force $F$ at the other end of the chain. The tension at a point distant quarter of the length of the chain from free end will be

Q. A fixed wedge $ABC$ is in the shaped of an equilateral triangle of side $l.$ initially, a chain of length $2l$ and mass $m$ rests on the wedge as shown. The chain is slowly being pulled down by the application of a force $F$ as shown. Find the work done by gravity till the time, the chain leaves the wedge.