A ship A is moving Westwards with a speed of 10 km h^(-1) and a ship B 100 km South of A, is moving Northwards with a speed of 10 km h^(1). The time after which the distance between them becomes shortest is

A ship A is moving Westwards with a speed of 10 km h^(-1) and a ship B

1.	A ship A is moving Westwards with a speed of 10 km h^(-1) and a ship B 100 km South of A, is moving Northwards with a speed of 10 km h^(1). The time after which the distance between them becomes shortest is
Answer» `5sqrt(2) H` `10sqrt(2) h` 0h 5h Answer :D