Question

Which one is an example of a uniform motion?

• A. A freely falling stone.
• B. A stone projected vertically upward.
• C. Earth turning around its axis.
• D. A bicycle driven on crowded Road.

Answer 1

The correct option is C

Earth turning around its axis.

Explanation for the correct option(s)

1. The motion of an object is said to be in uniform motion if the speed of the object is constant throughout the duration.
2. Earth turning around its axis is an example of uniform motion because the speed of the earth is constant throughout the duration.

Explanation for the incorrect option(s)

1. A freely falling stone is an example of uniform acceleration.
2. A stone projected vertically upward is an example of uniform retardation.
3. A bicycle driven on crowded Road is an example of non-uniform motion as it keeps changing its speed.

Hence, option C is correct.