12.3 mph is the average speed of a professional football player
150mph
2,000,000,000,000,000,000,000,000,000 miles
what is the average speed of a full back
The average velocity of a thrown football is from 40 to 60 MPH. Although there has been faster velocities recorded.
26
16.7 meters/sec
16.66m/s
cornerback or safety
16.66 meters per second
The average speed is 16.66... (repeating) metres per second. It is not possible to calculate the average velocity without further information because, due to gravity, the velocity is changing continuously during the ball's flight.
Average speed is an average value of speed over a given time. If your speed is constant (not changing), then your average speed will equal your speed at any given moment in time.