Question

Mary measures how far she can run in a given period of time .She is measuring her ?

Answer 1

She is measuring her speed

Step-by-step explanation:

Speed is defined as the ratio between the distance covered divided by the time taken to cover that distance:

`v=(d)/(t)`

where

d is the distance covered

t is the time taken

Since Mary is measuring how far she can run in a given period of time, she is measuring the distance she can travel (d) in a given time (t), so she is measuring her speed.