Calculate the kinetic energy of a car with a mass of 500 kg traveling at a velocity of 10 m/s, north. explain how you got the answer. a: 2,500 j b: 50,000 j c: 100 j d: 25,000 j

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?