Respuesta :
Answers:0m/s
Step-by-step explanation: once she has completed one lap, displacement is 0, therefore her velocity is 0m/s
The average velocity of her is zero.
Average velocity;
Average velocity is defined as the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.
Given
A runner runs around a track consisting of two parallel lines 96 m long connected at the ends by two semicircles with a radius of 49 m.
She completes one lap in 100 seconds.
The formula is used to find average velocity is;
[tex]\rm Average \ velocity=\dfrac{Change \ in \ displacement }{Change \ in \ time \ interval}[/tex]
Here, the runner displacement is zero.
Therefore,
[tex]\rm Average \ velocity=\dfrac{Change \ in \ displacement }{Change \ in \ time \ interval}\\\\\rm Average \ velocity=\dfrac{0 }{100}\\\\\rm Average \ velocity=0[/tex]
Hence, the average velocity of her is zero.
To know more about average velocity click the link given below.
https://brainly.com/question/21633104
