In swimming across a river, it takes a man 250 km in the direction of the bridge (from one end to the other).

A bridge in the shape of straight path across a river, makes an angle of 60^(@) with the width of the river. If the length of the bridge is 100m, then find the width of the river.

A man can swim at a speed 2ms^(-1) in still water. He starts swimming in a river at an angle 150^(@) with direction of flow of water and reaches at the exactly oppsite point on the opposite bank. (a) Find the speed of flowing water. (b) If width of river is 1 km then calculate the time taken also

A bridge across the river makes an angle of 30^(@) with the river bank.If the length of the bridge across the river is 60m, Find the width of the river.

A swimmer can swim in still water with speed v and the river is flowing with speed v//2 . What is the ratio of the time taken to swimming across the river in shortest time to that of swimming across the river over the shortest distance ?

To cross the river in shortest distance, a swimmer should swimming an angle theta with the upsteram. What is the ratio of the time taken to swim across in the shortest time to that in swimming across over shortest distance. [Asume that the speed of swimmer in still water is greater than the speed of river flow]

Ram swims in an 80 m long pool. He covers 160 m in one minute by swimming from one end to the other and back. 6 along the same straight path. Find his average speed

A river is flowing at a speed of 5 km/h in a particular direction. A man, who can swim at a speed of 20 km/h in still water, starts swimming along the direction of flow of the river from point A and reaches another point B which is at a distance of 30 km from the starting point A. On reaching point B, the man turns back and starts swimming against the direction of flow of the river and stops after reaching point A. The total time taken by the man to complete his journey is

A bridge across a river makes an angles of 45^(@) with the river bank as shown in Figure.If the lengthof the bridge across the river is 150m what is the width of the river?