Deceleration has the same units as acceleration, typically meters per second squared ($m/s^2$).
It can be calculated using the formula $a = \frac{\Delta v}{\Delta t}$, where $a$ is the deceleration, $\Delta v$ is the change in velocity, and $\Delta t$ is the change in time.
In kinematic equations, deceleration is represented as a negative value of acceleration.
An object undergoing deceleration will have its final velocity smaller than its initial velocity if the motion occurs in a straight line.
Deceleration can occur due to various forces such as friction, air resistance, or applied brakes.
Review Questions
What are the units used to measure deceleration?
How do you calculate deceleration using changes in velocity and time?
If an object undergoes deceleration, how does its final velocity compare to its initial velocity?
Related terms
Acceleration: The rate at which an object's velocity changes over time. Positive for speeding up and negative (deceleration) for slowing down.
\text{The branch of mechanics that studies motion without considering its causes}. Focuses on parameters such as displacement, velocity, and acceleration.