Solve the all parts of given problem:
Problem: A wheel with a tire mounted on it rotates at the constant rate of 2.05 times a second. A tack is stuck in the tire at distance 0.319 m from the rotation axis.
Part A: Noting that for every rotation the tack travels one circumference; find the tacks tangential speed.
Part B: What is the tack centripetal acceleration?
This is a physic problem, reply as soon as possible. Thank you.