Questions: A marathon runner runs with an average velocity of 5.5 m / s. How long in seconds does it take for the runner to travel 158 m ? (Round to the nearest second.)

Solution Steps

We need to find the time it takes for a marathon runner to travel a distance of 158 meters with an average velocity of $5.5 \, \text{m/s}$.

The formula to calculate time when distance and velocity are known is: $$t = \frac{d}{v}$$ where $t$ is the time, $d$ is the distance, and $v$ is the velocity.

Substitute the given values into the formula: $$t = \frac{158 \, \text{m}}{5.5 \, \text{m/s}}$$

Perform the division to find the time: $$t = 28.7273 \, \text{s}$$

Round the calculated time to the nearest second: $$t \approx 29 \, \text{s}$$

Final Answer