A ship loaded with passengers wants to cross the river 200m wide flowing with a speed of 4 m/s. Boat moves towards north east with a speed of 4 m/s. when the boat had traveled half the dstance ,then passenger asked to sailor that the have to go to just opposite shore from where they have started. the find the direction to which the boat hasto travel to reach the opposite point from where they have started. a hint diagram is given.
ans:-2tan¯¹(1/2)
