Two ships A and B are 4 km apart. A is due west of B. If A moves with a uniform velocity of 8 km `hr^(-1)` due east and B moves with a uniform velocity of 6 km `hr^(-1)` due south, calculate (i) the magnitude of velocity of A relative to B, (ii) the closest distance apart of A and B.

Explanation

`(I ) 10 km hr^(-1) , (ii ) 2.4 km`