What is the unit for acceleration?

Acceleration is a vector quantity that measures the rate at which the velocity of an object changes over time. It is the rate of change of velocity, with units in meters per second squared (m/s^2) in the International System of Units (SI).

Acceleration can be either positive or negative, depending on whether the object is speeding up or slowing down. For example, when a car is accelerating, it is increasing its speed, leading to a positive acceleration. On the other hand, when a car is decelerating or coming to a stop, it is decreasing its speed, resulting in a negative acceleration.

Acceleration is a crucial concept in physics and is used to describe motion in terms of how quickly an object is changing its velocity. It plays a significant role in understanding forces, motion, and dynamics in various fields such as physics, engineering, and astronomy.