The velocity of water in a river is `2 kmph`,while width is `400 m`. A boat is rowed from a point rowing always aiming opposite point at `8 kmph` of still water velocity. On reaching the opposite bank the drift obtained is

A ,man wishing to cross a river flowing with velocity u jumps at an angle theta with the river flow. (a) Find the net velocity of the man with respect to ground if he can swim with speed v in still water. (b) In what direction does the boat actually move ? ( c) Find how far from the point directly opposite to the starting point does the boat reach the opposite bank, if the width of the river is d .

Velocity of the boat with respect to river is 10m/s. From point A it is steered in the direction shown. Where will it reach on the opposite bank ?

Width of a river is 30 m, velocity is 4 m//s and rowing velocity is 5 m//s (a) Make the velocity diagram for crossing the river in shortest time. Then, find this shortest time, net velocity of boatman and drigt along the river. (b) Can the boatman reach a point just oppsite on the other shore? If yes then make the velocity diagram, the direction in which the should row his boat and the time taken to cross the river in this case. (c) How long will it iake hom to row 10 m up the stream and then back to his starting point?

The width of a rivers is 25m and in it water is flowing with a velocity of 4m//min . A boatman is standing on the bank of the river . He want to sail the boat to a point at the other bank which is directly opposite to him . In what time will he cross the river , if he can sail the boat at 8m//min . relative to the water ?

A river is flowing steradily with a speed 5 km h^(-1) . A boat man can row with a speed of 10 km h^(-1) in still water. He rows his boat in river at right angles to the bank of river, If width of river is 800 m , (i) how much time the boat man will take to cross the river ? (ii) How far away from a point just opposite to the bank of river he will be reaching there ? (ii) What will be his effective speed gt

A 400 - m wide river is flowing at a rate of 2.0 m s^-1 . A boat is sailing with a velocity of 10 m s^-1 with respect to the water, in a direction perpendicular to the river. (a) Find the time taken by the boat to reach the opposite bank. (b) How far from the point directly opposite to the starting point does the boat reach the opposite bank ? ( c) In what direction does the boat actually move ?

A person swims at 135^(@) to current to river, to meet target on reaching opposite point.The ratio of person's velocity to river water velocity is

The velocity of water in a river is 18 kmph near the surface. If the river is 4 m deep, the shearing stress between horizontal layers of water in Nm^(-2) is (eta_("water")=1xx10^(-3)pa.s)

A river 400 m wide is flowing at a rate of 2.0 m//s. A boat is sailing at a velocity of 10.0 m//s with respect to the water In a direction perpendicular to the river. (a) Find the time taken by the boat to reach the opposite bank. (b) How far from the point directly opposite to the starting point does the boat reach the opposite bank?