A battalion of soldiers is ordered to swim across a river `500 m` wide. At what minimum rate should they swim perpendicular to river flow in order to avoid being washed away by the waterfall 300 m downstream. The speed of current being 3m/sec:

A man swims across a river with speed of V_(m) perpendicular to the flow direction of river. If the water flows with a speed V_(w) with what resullant velocity does the man cross the river ?

A moan sinms across a river with speed of V_(m) perpendicular to the flow direction of river. If the water flows with a speed V_(w) with what resullant velocity does the man cross the river ?

Assertion: To cross the river in minimum time swimmer should swimming in perpendicular direction to the water current. Reason: In this case river flow helps to cross this river.

Assertion: To cross the river in minimum time swimmer should swimming in perpendicular direction to the water current. Reason: In this case river flow helps to cross this river.

Assertion: To cross the river in minimum time swimmer should swimming in perpendicular direction to the water current. Reason: In this case river flow helps to cross this river.

A man swims from a point A on the bank of a river if width 100 m . When he swims perpendicular to the water current, he reaches the other bank 50 m downstream. The angle to the bank at which he should swim, to reach the directly opposite point B on the other bank is. .

A man wishes to swim across a river 40 m wide flowing with a speed of 3m/s. such that he reaches the point just infront on the other bank in time not greater than 10s. The angle made by the direction he swims and river flow direction is :-

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

A swimmer wishes to .cross a river 500 m wide flowing at a rate 'u'. His speed with respect to still water is 'v'. For this, he makes an angle theta with the perpendicular as shown ip. the. figure. To cross the river in minimum time, the value of theta should be: