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 …

If velocity and acceleration point the same direction, the object is speeding up. If velocity and acceleration point opposite directions, the object is slowing down.

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.

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

Review the key concepts, equations, and skills for centripetal motion, including intuition for the direction of centripetal acceleration.

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 …

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.