Assertion : The magnitude of the displacement for a course of motion may be zero.
Reason : The path length for the corresponding course of motion is zero.

Explain with an example that the magnitude of displacement may be zero but the corresponding path length is not zero.

Assertion : If the displacement of the body is zero, the distance covered by it may not be zero. Reason : Displacement is a vector quantity and distance is a scalar quantity.

Assertion : Power developed in circular motion is always zero. Reason : Work done in case of circular motion is zero.

The magnitude of displacement may or may not be equal to the path length traversed by an object." Explain this statement with example.

If motion is not linear then path length = magnitude of displacement.

Assertion (A) The angle between acceleration and velocity of a body is one-dimensionla motion is always zero. Reason (R ) One -dimensional motion is along a straight line.

Assertion , No work is done if the displacement is zero Reason: Work done by the force is defined to be the product of component of the force in the the direction of the displacement and the magnitude of displacement.