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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



Question ID - 54177 | SaraNextGen Top Answer

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

1 Answer
127 votes
Answer Key / Explanation : (d) -

(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.

127 votes


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