In light of the arduous(difficult) fate to which he has been condemned, how does one explain this incongruous(odd) perspective? how can sisyphus possibly be happy, given his onerous circumstance? how can one rejoice in torment? can one embrace the absurd?

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?