Question

Give two examples of bodies having non-uniform motion.

Answer 1

Hint: When an object changes its position from any reference point continuously with respect to time, then the object is said to be in motion. Motion of any object can be described in the terms such as- Distance, Displacement, Speed and time. In simple words, a body is said to be in motion when its position changes continuously with respect to a stationary (fixed) reference point.

Complete step by step answer:
Broadly, the motion can be classified in a number of ways.
Accordingly, there are two types of motion-
Uniform Motion
Non-Uniform Motion

Uniform Motion – When an object travels an equal distance in equal interval of time it is said to be uniform motion. For Example- the Earth rotates around the Sun and it completes one rotation in fixed 24 hours.

Non- Uniform Motion- When an object does not travel an equal distance in equal interval of time, is said to be non-uniform motion. It is also known as an accelerated motion.
For example -
- The Vehicle travelling through the market area or the crowded area
- Airplanes moving through the cloudy area and then landing
- A boy running in the race
- A person jogging in the garden

Note:
Behind any motion, force acts on it. According to Newton’s laws of motion – Any object at rest or any stationary object does not move unless and until any force acts on it to start or to move the object. Similarly, an object remains in motion with the same speed and in the same direction until an external force acts on it. Where an external force can change the speed and change the direction and it may also stop the object’s motion.