Mrs.ari lives on an island 1 km from the mainland. She paddled her canoe at 3km/h ?

Question

and jogs at 5km/h T nearest drug store is 3km along the shore closest to the island. Where should she land

to reach the drug store in minimum time?

Answer 1

if she goes to the closest point by boat and jogs 3 kms - it would take her 56 minutes.  the distance from the island to the store by boar would be the square root of (9 + 1) = 3.15 kms. by canoe that would take her over an hour.  

it would be best to go to the closest point by boat (1km) and jog (3 kms)

AM

Answer 2

3 miles from the point perpendicular to her island point of departure.