What is de deceleration according to physics?

Deceleration, in physics, refers to the rate at which an object slows down or decreases its speed. It is the opposite of acceleration, which is the rate at which an object speeds up or increases its velocity. Deceleration can be caused by forces such as friction, air resistance, or gravity acting in the opposite direction of the object's motion. It is typically measured in units of meters per second squared (m/s^2) or feet per second squared (ft/s^2).

Deceleration is the rate at which an object's velocity decreases. It is a vector quantity, meaning that it has both magnitude and direction. The magnitude of deceleration is the absolute value of the change in velocity divided by the time interval over which the change occurs. The direction of deceleration is opposite to the direction of the object's velocity.

Deceleration is often caused by friction, air resistance, or other forces that oppose motion. For example, a car that is braking will experience deceleration because the friction between the tires and the road will cause the car's velocity to decrease.

The SI unit of deceleration is meters per second squared (m/s^2).