(a) To see that length contraction is negligible at everyday speeds, determine the length contraction (∆L) of an automobile 5.00 m long when it is traveling at 100 km/h. The diameter of an atomic nucleus is on the order of 10-15m. How does your answer compare to this?
(b) Suppose that it is possible to measure a length contraction for this car of 0.0100 mm or larger. What minimum car speed would be required to detect this effect?