8. Which of Newton’s Laws would allow a passenger to fly right out of their seat if they do not have a seat belt on and a car suddenly stops.
A) The First Law C) The Third Law
B) The Second Law D) The Fourth Law

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?