# How is acceleration measured?

Apr 5, 2018

See explanation below

#### Explanation:

Acceleration is the variation of velocity (speed) per time unit

Speed is measured in meters/second or miles/hour or cm/year. It´s say length/time. Lets say $\frac{m}{\sec}$

Then acceleration will be $\frac{\frac{m}{\sec}}{\sec} = \frac{m}{\sec} ^ 2$

The value (for example) of gravity acceleration y Earth's surface is $9 , 8 \frac{m}{{\sec}^{2}}$. That means: a body in free falling each second increment his velocity 9,8 m/sec faster

Apr 5, 2018

In $\frac{m}{s} ^ 2$

Said as:
(meters per second squared) or (meters per second per second)

#### Explanation:

We get this by dividing the difference in speed or velocity of an object by the time it takes to change its speed or velocity...

So if something went from a velocity of $5 \frac{m}{s}$ East to $10 \frac{m}{s}$ East in $10$ seconds

The equation would be:
difference in velocity$/$total time taken

$= \frac{10 \frac{m}{s} - 5 \frac{m}{s}}{10 s}$

=$0. 5 \frac{m}{s} ^ 2$

Apr 5, 2018

See below.

#### Explanation:

The rate of change of velocity per unit of time is called acceleration ..
Mathematically,

$\implies \text{acceleration" = ("final velocity" - "initial velocity")/"time taken}$

or

$a = \frac{v - u}{t}$

Where

• $a =$ acceleration
• $v =$ final velocity
• $u =$ initial velocity
• $t =$ time taken

So, by using this method, the acceleration of a body can be measured.

Hope that helped!