Question

Assertion: The moment of a force is a vector quantity.

Reason: Moment of a force = Torque × perpendicular distance of the pivot from other force.

Options

• If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

• If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.

• If Assertion is true, but the Reason is false.

• If Assertion is false, but the Reason is true.

Answer 1

If Assertion is true, but the Reason is false.

Explanation:

The moment of a force is a vector quantity because it has both magnitude and direction. Therefore, the Assertion (A) is true.

The correct relation is:

Moment of force = Force × perpendicular distance from the pivot

The given Reason (R) states an incorrect relation. Therefore, the Reason (R) is false.

Hence, A is true but R is false.