Question

1. based on the data table, and your answers above, who was the fastest?

racer name distance (meters) time (seconds) speed (m/s)
roadrunner 1,000 140
speedy gonzales 1,000 135
roadrunner
speedy gonzales

Explanation:

Step1: Recall the speed formula

Speed \(v=\frac{d}{t}\), where \(d\) is distance and \(t\) is time.

Step2: Compare times for same - distance

Since \(d_{Roadrunner}=d_{Speedy\ Gonzales} = 1000m\). For motion with constant distance, speed is inversely proportional to time (\(v\propto\frac{1}{t}\)).
Given \(t_{Roadrunner}=140s\) and \(t_{Speedy\ Gonzales}=135s\). Since \(135s<140s\), and \(v = \frac{d}{t}\) (with \(d\) constant), the racer with less time has higher speed.

Answer:

Speedy Gonzales