Question

Which of the following is an example of motion in one dimension?

• A. A ball, falling freely, vertically under gravity.
• B. An insect crawling on a ball.
• C. A bird flying in the air
• D. All of the above

Answer 1

Answer: (A)

$Answer:-$ A

Motion in one dimension:

It is also known as rectilinear or linear motion. A particle moving along a straight line is said to undergo one dimensional motion. In such a case, only one of the three rectangular coordinates changes with time.

Examples of one dimensional motion are:

• Motion of a train along a straight line

• An object, like a ball, falling freely, vertically under gravity

• The vertical up and down oscillations of an object suspended from a vertical spring.