Suppose two cars depart from a four-way intersection at the same time, one heading north and the other heading west. The car heading north travels at the steady speed of 30 ft/sec and the car heading west travels at the steady speed of 64 ft/sec.
(a) Find the distance in miles between the two cars after 3 hours 46 minutes. (Round your answer to one decimal place.)
answer:_____________mi
(b) When are the two cars 1 mile apart? (Round your answer to one decimal place.
answer:______________sec