# What is the speed of an object that travels from #( -9,4,-6) # to #( -5,1,-2 ) # over #3 s#?

##### 1 Answer

May 25, 2016

The speed is 2.13 m/s.

#### Explanation:

The distance between two points in the space is given by

This is the Pitagora's theorem in three dimensions.

The speed is simply the space (in this case the distance) divided by the time.