KE is 500 J and velocity is 5 m/s

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

What is the scientific definition of energy that relates to work

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?