Q:
# What is the equation for velocity?

**The equation for velocity is displacement divided by time.** The equations for speed and velocity are similar, but velocity must always have direction, whereas speed does not.

While speed is a measure of how fast something is moving, velocity is a measure of the rate an object changes its position. Distance is a measure of how far something is, while displacement is a measure of the shortest distance between an object's start point and its end point. For example, a runner who ran 400 meters around a track travelled a distance of 400 meters. However, he has a displacement of 0 because he ended up at the same place he started.

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Q:
## How is speed calculated?

A: Speed is also known as velocity, and it is calculated by dividing the distance traveled by the amount of time it took to cover that distance. This is expre... Full Answer >Filed Under: -
Q:
## What is the free-fall equation?

A: The equation to calculate a free-falling object's velocity or time spent falling is velocity equals gravitational acceleration multiplied by time. This occ... Full Answer >Filed Under: -
Q:
## What is the angular acceleration formula?

A: While there are several formulas for angular acceleration, the basic equation is the change in angular velocity divided by the change in time. This relatio... Full Answer >Filed Under: -
Q:
## What is the definition of constant acceleration?

A: Constant acceleration is a change in velocity that doesn't vary over a given length of time. If a car increases its velocity by 20 mph over the course of a... Full Answer >Filed Under: