Question

A runner runs around a track consisting of two parallel lines 96m long connected at the ends by two semicircles with a radius of 49m. She completes one lap in 100 seconds. What is her average velocity

Answer 1

avg speed = distance/time, so that would be
(2*96 + 98π)/100 m/s

but since she ends up where she started, her average <b>velocity</b> is zero.