A small island is 2 km off shore in a large lake. A woman on the island can row her boat 10 km/h and can run at a speed of 20 km/h. If she rows to the closest point of the straight shore, she will land 6 km from a village on the shore.
How far from the village should she land to reach it most quickly by a combination of rowing and running?
1 answer
work this one just like the last. But time = distance/speed, rather than cost=distance*rate.