(II) A 0.735-kg block oscillates on the end of a spring whose spring constant is k = 41.0 N/m . The mass moves in a fluid which offers a resistive force F = ― bv, where b = 0.662 N • s/m .
(a) What is the period of the motion?
(II) An 1150-kg automobile has springs with k = 14,000 N/m . One of the tires is not properly balanced; it has a little extra mass on one side compared to the other, causing the car to shake at certain speeds. If the tire radius is 42 cm, at what speed will the wheel shake most?