shelley gives her little sister a 5 - meter head start in a bike race. the race ends 15 meters east from…

shelley gives her little sister a 5 - meter head start in a bike race. the race ends 15 meters east from where shelley started. if her little sister completes the race in 5 seconds, what is her sisters average velocity? (round your answer to the nearest whole number.)\n1 m/s east\n2 m/s east\n3 m/s east\n4 m/s east

shelley gives her little sister a 5 - meter head start in a bike race. the race ends 15 meters east from where shelley started. if her little sister completes the race in 5 seconds, what is her sisters average velocity? (round your answer to the nearest whole number.)\n1 m/s east\n2 m/s east\n3 m/s east\n4 m/s east

Answer

Explanation:

Step1: Determine displacement

The race ends 15 meters east from Shelley's start - point and her sister had a 5 - meter head - start. So the displacement $d$ of her sister is $15 - 5=10$ meters east.

Step2: Recall velocity formula

The formula for average velocity is $v=\frac{d}{t}$, where $d$ is displacement and $t$ is time. Here, $d = 10$ meters and $t = 5$ seconds.

Step3: Calculate velocity

$v=\frac{10}{5}=2$ m/s east.

Answer:

2 m/s east