Question

question 4 of 25
a football player runs down the field with a speed of 8 m/s. how long will it take him to run 20 m?
a. 160 s
b. 0.4 s
c. 5.5 s
d. 2.5 s

Explanation:

Step1: Recall speed - time - distance formula

The formula is $v=\frac{d}{t}$, where $v$ is speed, $d$ is distance, and $t$ is time. We want to find $t$, so we can rewrite the formula as $t = \frac{d}{v}$.

Step2: Substitute given values

We know that $d = 20$ m and $v=8$ m/s. Substituting these values into the formula $t=\frac{d}{v}$, we get $t=\frac{20}{8}$.

Step3: Simplify the fraction

$\frac{20}{8}=\frac{5}{2}=2.5$ s.

Answer:

D. 2.5 s