Explanation:

Non-uniform motion is the type of motion in which an object does not cover equal distances in equal intervals of time. It is also known as accelerated motion because the velocity of the object changes with time.

Acceleration:

Acceleration is defined as the rate of change of velocity with respect to time. It is a vector quantity and is denoted by ‘a’. The SI unit of acceleration is m/s². Acceleration can be positive, negative or zero.

Types of Acceleration:

There are three types of acceleration:

1. Positive acceleration: If the velocity of an object increases with time, the acceleration is said to be positive.

2. Negative acceleration: If the velocity of an object decreases with time, the acceleration is said to be negative.

3. Zero acceleration: If the velocity of an object remains constant with time, the acceleration is said to be zero.

Causes of Acceleration:

Acceleration can occur due to various reasons such as:

1. Change in speed: When an object changes its speed, it experiences acceleration.

2. Change in direction: When an object changes its direction, it experiences acceleration.

3. Combination of change in speed and direction: When an object changes its speed and direction simultaneously, it experiences acceleration.

Examples of Non-uniform Motion:

1. A car moving on a crowded street.

2. A ball thrown in the air.

3. A roller coaster moving on its track.

In all these examples, the velocity of the object is changing with time, hence, they are examples of non-uniform motion.

Conclusion:

In conclusion, non-uniform motion is also called accelerated motion because the velocity of the object changes with time. Acceleration is the rate of change of velocity with respect to time and can be positive, negative or zero. Non-uniform motion can occur due to various reasons such as change in speed, change in direction or combination of change in speed and direction. Examples of non-uniform motion include a car moving on a crowded street, a ball thrown in the air and a roller coaster moving on its track.

Because the object moving on different sides and these are keeping acceleration