A door 1.6 m wide requires a force of 1N to be applied at the free and to open or close it. The force that is required at a point 0.4 m distance from the hinges for o[ening or closing the door is

A door 1.6 m wide requires a force of 1 N to be applied at the free and to open or close it. The force that is required at a point 0.4 m distant from the hinges for opening or closing the door is

A door can just be opened with 10N force on the handle of the door. The handle is at a distance of 50cm from the hinges. Then, the torque applied on the door (in Nm ) is

To open or close a heavy door, why force is applied at right angles to the door.

To push open a door, a person applies a force of 75 N on the handle of the door, at an angle of 60^(@) from the normal to its plane. If the handle is located at a distance of 80 cm from its hinge, find the torque applied by him.

When a force of 10 N is applied about the axis of rotation of a body , it produces a torque of 5 N m. Find the distance of the point of application of the force from the axis of rotation.

A force of 100 N increases the length of a given wiere by 0.1 mm. Then the force required to increase its length by 0.25 mm is

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 P which is at a distance of quarter of the length of the chain from the free end,will be