emmittmorrow1101 emmittmorrow1101 18-09-2021 Physics contestada Cheryl runs a race on a circular 400.0 m track. She starts running east at the starting line and stops 20.0 m west of the starting line. Her time is 80 s. What is her average speed? O 0.21 m/s -0.21 m/s 50 m/s 4.8 m/s
