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.

In the following question, statement 1 refers assertion and statement 2 refers reason. Statement 1: If there is no external torque on a body about its centre of mass, then the velocity of the centre of mass remains constant. Statement 2: The linear momentum of an isolated system remains constant. Which one of the following statement is correct?

Statement-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.

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.

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.

Show that in the absence of any external force, the velocity of the centre of mass remains constant.

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