Statement 1: |
If there is no external torque on a body about is center of mass, then the velocity of the center of mass remains constant. |
Statement 2: |
The liner momentum of an isolated system remains constant. |
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
c) |
Statement 1 is True, Statement 2 is False |
d) |
Statement 1 is False, Statement 2 is True |
Statement 1: |
If there is no external torque on a body about is center of mass, then the velocity of the center of mass remains constant. |
Statement 2: |
The liner momentum of an isolated system remains constant. |
a) |
Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1 |
b) |
Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1 |
c) |
Statement 1 is True, Statement 2 is False |
d) |
Statement 1 is False, Statement 2 is True |
(d)
If a force is applied at centre of mass of a rigid body,
its torque about centre of mass will be zero, but acceleration
will be non-zero. Hence, velocity will change.