# How can speed change mass

## F = m * a

**In this article we deal with the equation F = m · a. It is about what this equation says and there are examples with numbers. This article belongs to our field of physics or mechanics.**

Perhaps one of you has heard of Newton's laws or Newton's axioms? The equation F = m · a is also part of these Newtonian laws. Let's take another look at this equation:

- "F" is the force in Newtons
- "m" is the mass in kilograms
- "a" is the acceleration in meters per second squared

In words, this means that force = mass times acceleration. So if you know two of the three sizes, you can use them to calculate the third size.

Show:**Force, mass and acceleration**

Before we get to examples, let's briefly look at these three terms.

**Powers**:

Forces can be recognized by their effects. Some information about this:

- A force can change the direction of movement of a body.
- A force can change the speed of a body.
- Forces can deform other objects on impact, for example.
- A force acts in a certain direction (keyword: vector).

**Dimensions**:

- Mass is a property of matter.
- In most physical size systems it is one of the basic sizes.
- It is given in the unit of kilograms.
- The symbol is usually m.
- Every physical system has a mass.

**acceleration**:

- In physics, acceleration is the change in the state of motion of a body.
- It plays a central role in the description of movement processes and their influence by forces.

**F = m · a examples**

Let's look at some examples with numbers and units.

**example 1**:

Given a mass of 20 kilograms and an acceleration of 10 meters per second squared. Calculate the force.

**Example 2**:

A force is 500 Newtons, the acceleration is 50 meters per second squared. Calculate the mass.

**Left:**

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