Ship A is sailing towards north-east with velocity
vˉ=30i^+50j^ km/hr where i^ points east and j^ north.
Ship B is at a distance of 80 km east and 150 km north of Ship A and is sailing towards west at 10 km/hr. A will be at minimum distance from B in: [8 April 2019 I]
(a) 4.2 hrs.
(b) 2.6 hrs.
(c) 3.2 hrs.
(d) 2.2 hrs.