Question

Which one is an example of non-uniform motion.

• A. An aeroplane flying at 300 kmh^-1.
• B. Water falling from a waterfall.
• C. Earth going around the sun.
• D. None of these.

Answer 1

The correct option is B

Water falling from a waterfall.

Explanation for the correct option(s)

1. Water falling from a waterfall is an example of non-uniform motion.
2. The motion of a body in which the object travels with varied speed and does not cover same distance in equal time intervals is known as non-uniform motion.
3. So, water falling from a waterfall is an example of non-uniform motion because water does not cover the same distance in equal time intervals.

Explanation for the incorrect option(s)

1. An aeroplane flying at 300 kmh^-1 is an example of uniform motion.
2. Earth going around the sun is also an example of uniform motion.

Hence, option B is correct.