The speed of river current close to banks is nearly zero. The current speed increases linearly from the banks to become maximum `(= V_(0))` in the middle of the river. A boat has speed ‘u’ in still water. It starts from one bank and crosses the river. Its velocity relative to water is always kept perpendicular to the current. Find the distance through which the boat will get carried away by the current (along the direction of flow) while it crosses the river. Width of the river is l.

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.

When a sailor jumps from a boat to the river bank?

A man swims to and fro along the bank of a river with a velocity v relative to water. If the velocity of flow is u , the average speed of the man (for to and fro motion) is :

A man who can swim at a velocity v relative to water wants to cross a river of width b, flowing with a speed u.

The width of a river is 2sqrt3km .A boat is rowed in direction perpendicular to the banks of river.If the drift of the boat due to flow is 2 km ,the displacement of the boat is.

A person rows a boat in a water with a speed of 4 ms^(-1) . Water in the river is flowing with a speed of 2 ms^(-1) . If the person rows the boat perpendiculat to thedirection of flow, find resultant velcity of the boat and time taken by boat to cross the river if widthe of the river is 400 m .

A man crosses a 320m wide river perpendicular to the current in 4 min. If in still water he can swim with a speed 5//3 times that of the current, then the speed of the current, in m//min is