Describe how the average speed of the cyclist can be measured. In your account, suggest what equipment is used, the measurements that are made and how the average speed is calculated

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

What causes the formation of ocean currents?