Question

In a straight line motion
(1) Magnitude of velocity never changes
(2) Displacement is always positive
(3) Displacement may be zero
(4) Direction of velocity never changes​

Answer 1

Answer:

2 option is the right answer

Answer 2

Answer:

In a straight-line motion (2) Displacement is always positive

Explanation:

If a body travels in a straight line and covers an equivalent amount of distance in an equal interval of time, it is declared to have uniform motion. In simple words, a body is said to contain uniform acceleration if the rate of change of its velocity stays constant.

Displacement is a vector quantity whose magnitude exists equal to the shortest distance between the initial and final points so it can not be greater than the distance. Therefore,(2) Displacement is always positive.

It is always positive. It can be more than or equal to displacement. It may not be zero even if the displacement is zero

Displacement exists determined to be the change in position of an object.

Hence, In a straight-line motion (2) Displacement is always positive

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