In 1954, Roger Bannister became the first human to run a...

In $1954,$ Roger Bannister became the first human to run a mile in less than 4 minutes. Suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min. What is his average speed in (a) $\mathrm{mi} / \mathrm{h},$ (b) $\mathrm{ft} / \mathrm{s},$ and $(\mathrm{c}) \mathrm{m} / \mathrm{s}$ ?

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Average Speed

Average speed is calculated by dividing the total distance traveled by the total time taken. It provides a measure of how fast an object moves over a journey, regardless of any changes in speed during different segments of the movement.

Unit Conversions

Unit conversions involve translating a measurement expressed in one set of units into an equivalent measurement in another set using conversion factors. This process is essential when comparing or combining quantities measured in different units, such as converting miles per hour to feet per second or meters per second.

Dimensional Analysis

Dimensional analysis is a method used to ensure that equations and computations are dimensionally consistent by systematically converting units. It employs conversion factors to transition between various unit systems, helping to verify that the final result is expressed in the correct units.

Transcript

Please give Ace some feedback