A boat makes one round trip along the line AB in the river of width d. If speed of boat in still water is u and speed of water flow in the river is v, then time taken to complete the trip, is B V A

A boat covers a distance of 14 km in 4 hours along the flow. What is the speed of the boat in still water, if the speed of the flow of water is 2 km/h?

What time will be taken by a boat to cover a distance of 64 km along the stream, if speed of boat in still water is 12 km/h and speed of stream is 4 km/h?

A boat crosses a river of width 1 km by shortest path in 15 min. if the speed of boat in still water is 5 kmh^(-1) , then what is the speed of the river?

What time will be taken by a boat to cover a distance of 128 km along the stream, if speed of a boat in still water is 24 km/h and speed of stream is 8 km/h?

A man can swim in still water at a speed of 6 kmph and he has to cross the river and reach just opposite point on the other bank.If the river is flowing at a speed of 3 kmph ,and the width of the river is 2km , the time taken to cross the river is (in hours)

In a river, the ratio of the speed of stream and speed of a boat in still water is 2:5. Again, ratio of the speed of stream and speed of an another boat in still water is 3:4 What is the ratio of the speeds of the first boat to the second boat in still water?

The current velocity of river grows in proportion to the distance from its bank and reaches the maximum value v_0 in the middle. Near the banks the velocity is zero. A boat is moving along the river in such a manner that the boatman rows his boat always perpendicular to the current. The speed of the boat in still water is u. Find the distance through which the boat crossing the river will be carried away by the current, if the width of the river is c. Also determine the trajectory of the boat.