The velocity of joe is 0 m/s.
The speed of joe is 4.76 m/s.
What is the velocity of Joe?
The velocity of Joe is calculated from the total displacement of Joe and the time of motion of Joe.
The displacement of Joe around the circular track when he runs 4 laps = 0 m
velocity = 0 m / ( 7 x 60 s ) = 0 m/s
The speed of joe is determined from the total distance to the total time of motion of Joe, and it is calculated as follows;
speed = ( 500 m x 4 ) / ( 7 x 60 s )
speed = 4.76 m/s
Learn more about velocity here: https://brainly.com/question/25905661
#SPJ1