A boat has to cross a river. It crosses the river by making an angle of `60^(@)` with the bank of the river due to the stream of the river and travels a distance of 600m to reach the another side of the river. What is the width of the river?

A person standing on the bank of a river observes that the angle of elevation of top of a tree on the opposite bank of the river is 60^@ and when the retires 40 metres away from the tree the angle of elevation becomes 30^@ the breadth of the river is

A man is watching a boat speeding away from the top of a tower. The boat makes an angle of depression of 60^(@) with the man's eye when at a distance of 200 m from the tower . After 10 seconds, the angle of depression becomes 45^(@) . What is the approximate speed of the boat ( in km/hr) , assuming that it is sailing in still water ? (sqrt(3) = 1.732)

From a point on a bridge across a river. The angles of depression of the banks on opposite sides at the river are 30^(@) and 45(@) respectively. If the bridger is at a height at 3 m from the banks, find the width at the river.

A man can swim at a speed of 3 km/h in still water. He wants t cross a 500 m wide river flowing at 2 km/h. He flow at an angle of 120 with the river flow while swimming. A. Find the time he takes to cross the river. b.At what point on the opposite bank will he arrive?

A boat which has a speed of 5 km/hr in still water crosses a river of width 1 km along the shortest possible path in 15 minutes. The velocity of the river water in km/hr is

A boat takes 1.6 hours longer to go 36kms up a river than down the river. If the speed of the water current is 4 km per hr, what is the speed of the boat in still water?

A swimmer wishes to cross a 500 m wide river flowing at 5 km/h. His speed with respect to water is 3 km/h. Consider the situation of the previous problem. The man has to reach the other shore at the point directly opposite to his starting point. If the reaches the other shore somewhere else, he has to walk down to this point. Find the minimum distance that he has to walk.

Pratik travels by boat 36 km down a river and back in 8 hours. If the speed of his boat in still water is 12 km/hr, find the speed of the river current.