# Question #4d59d

##### 1 Answer

The ratio between distance and displacement is

#### Explanation:

You know that your object covered a distance of **5 m** along a semicercular path. The *displacement* of the object is the shortest distance between its starting point and its finish point.

The distance it covered is equal to *half of the length* of a circle.

Let's say the object started at the far left of the semicircle and ended on the far right of the semicircle. The *shortest* distance between these points is actually the **diameter** of the circle.

You know that the distance is equal to **5 m**, so you can write

The ratio between distance and displacement will thus be

The ratio is unitless because you're dividing meters by meters.