How much is the torque due to gravity on a body about its centre of mass ?

What is meant by torque due to gravity?

Assertion : If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant. Reason : The linear momentum of an isolated system remains constant.

Satement-1: if there is no external torque on a body about its centre of mass, then the velocity of the center of mass remains constant. Statement-2: The linear momentum of an isolated system remains constant.

The force of gravity on a body of mass W is

Assertion: The centre of gravity of a body coincides with its centre of mass only if the gravitational field does not vary form one part of the body to the other. Reason: Centre of gravity is independent of the gravitational field.

A block having equilateral triangular cross-section of side a and mass m is placed on a rough inclined surface, so that it remains in equilibrium as shown in figure. The torque of normal force acting on the block about its centre of mass is

Acceleration due to gravity of a body is independent of

A cubical block of side 'a' is held at rest, against a rough vertical wall by applying a force F acting along the centre. The mass of the block is m . Taking acceleration due to gravity as 'g' , determine (i) The minimum coefficient of friction between the block and wall (ii) The torque by normal reaction about the centre of mass

The torque on a planet about the centre of sun is