Question

the chart shows danielas run through her race. what is her velocity?
options: 1.5 m/s, 2 m/s, 2.5 m/s, 5 m/s
(chart: position (m) vs time (sec), line from (0,5) to (10,30))

Explanation:

Step1: Identify position-time points

From the graph: at \( t=0 \) sec, position \( x=5 \) m; at \( t=10 \) sec, position \( x=30 \) m.

Step2: Calculate velocity

Velocity \( v = \frac{\Delta x}{\Delta t} = \frac{30 - 5}{10 - 0} = \frac{25}{10} = 2.5 \) m/s.

Answer:

C. 2.5 m/s