Acceleration:

Acceleration is the rate at which an object changes its velocity over time. It is a vector quantity, meaning it has both magnitude and direction. When an object speeds up, slows down, or changes direction, it is experiencing acceleration.

Example:

An example of acceleration is a car speeding up from a stop sign. When the driver presses the gas pedal, the car's velocity increases over time. This change in velocity is due to the acceleration acting on the car.

Explanation:

- Definition: Acceleration is the rate of change of velocity. It is calculated as the change in velocity divided by the time taken for the change to occur.
- Units: Acceleration is measured in meters per second squared (m/s^2) in the metric system.
- Types: There are two main types of acceleration: linear acceleration, which involves a change in speed, and angular acceleration, which involves a change in direction.
- Causes: Acceleration can be caused by various factors such as forces like gravity, friction, or propulsion.
- Effects: Acceleration can result in changes in an object's speed, direction, or both. It can also cause objects to experience forces like inertia or g-forces.

In conclusion, acceleration plays a crucial role in understanding the motion of objects and is essential in various fields such as physics, engineering, and transportation.

When the velocity of body increase with time, the body is said to bs in acceleration.