A swimmer `S` is in the sea at a distance `d` `km` from the closest point `A` on a straight shore The house of the swimmer is on the shore at a distance `Lkm` from A He can swim at a speed of `ukm`/`hr` and walk at a speed of `vkm`/`hr(v>u)` At what point on the shore should he land so that he reaches his house in the shortest possible time?

A swimmer S is in the sea at a distance dkm from the closest point A on a straight shore. The house of the swimmer is on the shore at distance of the swimmer is on the shore at ukm/h.walk at speed at vkm swin at speed oh on shore should he land so that hhe reaches his house in the shortest time.

A boy goes to school from his home at a speed of 4 km/hr and returns at a speed of 6km/hr . If in total he took 5 hours in going and coming back, the distance between his house and school ?

A swimmer can swim with speed 12 m/s in still water. Speed of river is 6 m/s. Find angle at which he should swim with downstream so that he reaches directly opposite point on other side

A man starting from point P cross a 4km wide lagoon and reaches point Q in the shortest possible time by the path shown in the figure. If the person swims at a speed of 3km//hr and walks at a speed of 4km//hr, then find his time fo journey (in minutes). .

A fishing boat is anchored 9 km away from the the nearest point on the shore. A messanger must be sent from the fishing boat to a camp, 15 km from the point on shore closest to boat. If the messanger can walk at a speed of 5 km per hour and can row at 4 km/h. determine the distance of that point (in km) from the shore, where he must land so as to reach the shore in least possible time.

A boy goes to his school from his house at a speed of 3 "km"//"hr" and returns at a speed of 2 "km"//"hr" . If he takes 5 hours in going and coming, the distance between his house and school is :

A student reached his school late by 20 minutes by travelling at a speed of 9 km/hr. Had he travelled at the speed of 12 km/hr, he would have reached his school 20 minutes early. Find the distance between his house and the school?

The stream of a river is flowing with a speed of 2 km/h. A swimmer can swim at a speed of 4 km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight?