Question

A sprinter starting from rest on a straight and level track is able to achieve a speed of 14 m/s in a time of 6.7 s. What is the sprinter's average acceleration?answer:___ m/s2

Answer 1

2.09 m/s²

Explanation:

Given:

Initial speed = 0 m/s

Final speed = 14 m/s

Time = 6.7 s

We can determine the acceleration by the following formula:

`\begin{gathered} a=(\Delta v)/(\Delta t) \\ \\ \text{ We replacing:} \\ \\ a=(14-0)/(6.7-0) \\ \\ a=2.09\text{ m/s}^2 \end{gathered}`

The acceleration is equal to 2.09 m/s²