Question

When a body moves in a straight line then its displacement coincides with which physical quantity?

Answer 1

Answer:

It's answer is motion

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Answer 2

Answer:

When a body moves from one position to another, the shortest distance measured between the initial and the final positions of the moving body in a particular direction is called displacement. The actual length of the path travelled by a moving body in a given interval of time is called the distance travelled by that body. So displacement of a body may be zero, though distance can be finite. For example, in case of circular motion if the body comes back to its initial position then distance travelled is finite but displacement is zero.