What does acceleration mean? Compared to displacement and velocity, acceleration is like the angry, fire-breathing dragon of motion variables. It can be violent; some people are scared of it; and if it's …

Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared …

Acceleration is when an object's velocity is changing over time. Let's ignore the changing direction case and just focus on changing speed. An object can change speed either by speeding up or slowing …

Newton's second law tells us that a system's acceleration is directly proportional to the net force acting on the system, and is inversely proportional to the mass of the system.

If an object is dropped, its initial velocity is zero. And, the acceleration of an object equals the slope of its velocity vs. time graph. The acceleration of all free-falling objects near Earth's surface is a constant, …

Learn how to analyze forces and acceleration for an object moving along a circular path.

The slope of a velocity graph is the acceleration. Since the slope of the curve is decreasing and becoming less steep this means that the acceleration is also decreasing. It might seem …

Review the key concepts, equations, and skills for motion with constant acceleration, including how to choose the best kinematic formula for a problem.

David explains how to read an acceleration vs. time graph. He then shows how the area under the curve gives the change in velocity and does a few examples.

Review the key concepts and skills for acceleration due to gravity, including analyzing motion of objects in freefall.