A boat travels between two points and B on the banks of a river along live AB, Distance between A and B is 1200m. Velocity of river water is 1.9ms^(-1). Line AB makes alpha=60^(0) with direction of water folw . With what velocity and at what angle beta boat must move to cover AB and back in 5 minutes? Angle beta remains the same from A to B an while moving from B to A

A boat travels between two points and B on the banks of a river along

1.	A boat travels between two points and B on the banks of a river along live AB, Distance between A and B is 1200m. Velocity of river water is 1.9ms^(-1). Line AB makes alpha=60^(0) with direction of water folw . With what velocity and at what angle beta boat must move to cover AB and back in 5 minutes? Angle beta remains the same from A to B an while moving from B to A
Answer» ANSWER :`8MS^(-1),beta=12^(0)`