lila is a track and field athlete. she must complete four laps around a circular track. the track itself is…

lila is a track and field athlete. she must complete four laps around a circular track. the track itself is a 400 - meter track and it took her 6 minutes total to complete. which best describes her speed and velocity? (there are 60 seconds in 1 minute.) her speed is 4.4 m/s, and her velocity is 0 m/s. her speed is 1.1 m/s, and her velocity is 0 m/s. her speed is 0 m/s, and her velocity is 2400 m/s. her speed is 4.4 m/s, and her velocity is 4.4 m/s.

lila is a track and field athlete. she must complete four laps around a circular track. the track itself is a 400 - meter track and it took her 6 minutes total to complete. which best describes her speed and velocity? (there are 60 seconds in 1 minute.) her speed is 4.4 m/s, and her velocity is 0 m/s. her speed is 1.1 m/s, and her velocity is 0 m/s. her speed is 0 m/s, and her velocity is 2400 m/s. her speed is 4.4 m/s, and her velocity is 4.4 m/s.

Answer

Explanation:

Step1: Calculate total distance

She runs 4 laps and each lap is 400 m, so total distance $d = 4\times400=1600$ m.

Step2: Convert time to seconds

She takes 6 minutes. Since 1 minute = 60 seconds, $t=6\times60 = 360$ s.

Step3: Calculate speed

Speed $v_{speed}=\frac{d}{t}=\frac{1600}{360}\approx4.4$ m/s.

Step4: Analyze velocity

Velocity is a vector - quantity. Since she returns to the starting point after 4 laps (displacement $\Delta x = 0$), velocity $v_{velocity}=\frac{\Delta x}{t}=0$ m/s.

Answer:

Her speed is 4.4 m/s, and her velocity is 0 m/s.