143742 The speed of a boat is \(5 \mathrm{~km} / \mathrm{h}\) in still water. It crosses a river of width \(1.0 \mathrm{~km}\) along the shortest possible path in \(15 \mathrm{~min}\). The velocity of the river water is (in \(\mathrm{km} / \mathrm{h}\) )

143743 The speed of a swimmer in still water is \(20 \mathrm{~m} / \mathrm{s}\). The speed of river water is \(10 \mathrm{~m} / \mathrm{s}\) and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t. north is given by

143744 A ship A is moving Westwards with a speed of \(10 \mathrm{~km} \mathrm{~h}^{-1}\) and a ship \(B 100 \mathrm{~km}\) South of \(A\), is moving Northwards with a speed of \(10 \mathrm{kmh}^{-1}\). The time after which the distance between them becomes shortest is

143745 A metro train starts from rest and in 5 sec achieves \(108 \mathrm{~km} / \mathrm{h}\). After that it moves with constant velocity and comes to rest after travelling \(45 \mathrm{~m}\) with uniform retardation. If total distance travelled is \(395 \mathrm{~m}\), find total time of travelling.

143746 A river is flowing from west to east with a speed of \(5 \mathrm{~m} / \mathrm{min}\). A man can swim in still water with a velocity \(10 \mathrm{~m} / \mathrm{min}\). In which direction should the man swim so, as to take the shortest possible path to go to the south?

143742 The speed of a boat is \(5 \mathrm{~km} / \mathrm{h}\) in still water. It crosses a river of width \(1.0 \mathrm{~km}\) along the shortest possible path in \(15 \mathrm{~min}\). The velocity of the river water is (in \(\mathrm{km} / \mathrm{h}\) )

143743 The speed of a swimmer in still water is \(20 \mathrm{~m} / \mathrm{s}\). The speed of river water is \(10 \mathrm{~m} / \mathrm{s}\) and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t. north is given by

143744 A ship A is moving Westwards with a speed of \(10 \mathrm{~km} \mathrm{~h}^{-1}\) and a ship \(B 100 \mathrm{~km}\) South of \(A\), is moving Northwards with a speed of \(10 \mathrm{kmh}^{-1}\). The time after which the distance between them becomes shortest is

143745 A metro train starts from rest and in 5 sec achieves \(108 \mathrm{~km} / \mathrm{h}\). After that it moves with constant velocity and comes to rest after travelling \(45 \mathrm{~m}\) with uniform retardation. If total distance travelled is \(395 \mathrm{~m}\), find total time of travelling.

143746 A river is flowing from west to east with a speed of \(5 \mathrm{~m} / \mathrm{min}\). A man can swim in still water with a velocity \(10 \mathrm{~m} / \mathrm{min}\). In which direction should the man swim so, as to take the shortest possible path to go to the south?

143742 The speed of a boat is \(5 \mathrm{~km} / \mathrm{h}\) in still water. It crosses a river of width \(1.0 \mathrm{~km}\) along the shortest possible path in \(15 \mathrm{~min}\). The velocity of the river water is (in \(\mathrm{km} / \mathrm{h}\) )

143743 The speed of a swimmer in still water is \(20 \mathrm{~m} / \mathrm{s}\). The speed of river water is \(10 \mathrm{~m} / \mathrm{s}\) and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t. north is given by

143744 A ship A is moving Westwards with a speed of \(10 \mathrm{~km} \mathrm{~h}^{-1}\) and a ship \(B 100 \mathrm{~km}\) South of \(A\), is moving Northwards with a speed of \(10 \mathrm{kmh}^{-1}\). The time after which the distance between them becomes shortest is

143745 A metro train starts from rest and in 5 sec achieves \(108 \mathrm{~km} / \mathrm{h}\). After that it moves with constant velocity and comes to rest after travelling \(45 \mathrm{~m}\) with uniform retardation. If total distance travelled is \(395 \mathrm{~m}\), find total time of travelling.

143746 A river is flowing from west to east with a speed of \(5 \mathrm{~m} / \mathrm{min}\). A man can swim in still water with a velocity \(10 \mathrm{~m} / \mathrm{min}\). In which direction should the man swim so, as to take the shortest possible path to go to the south?

143742 The speed of a boat is \(5 \mathrm{~km} / \mathrm{h}\) in still water. It crosses a river of width \(1.0 \mathrm{~km}\) along the shortest possible path in \(15 \mathrm{~min}\). The velocity of the river water is (in \(\mathrm{km} / \mathrm{h}\) )

143743 The speed of a swimmer in still water is \(20 \mathrm{~m} / \mathrm{s}\). The speed of river water is \(10 \mathrm{~m} / \mathrm{s}\) and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t. north is given by

143744 A ship A is moving Westwards with a speed of \(10 \mathrm{~km} \mathrm{~h}^{-1}\) and a ship \(B 100 \mathrm{~km}\) South of \(A\), is moving Northwards with a speed of \(10 \mathrm{kmh}^{-1}\). The time after which the distance between them becomes shortest is

143745 A metro train starts from rest and in 5 sec achieves \(108 \mathrm{~km} / \mathrm{h}\). After that it moves with constant velocity and comes to rest after travelling \(45 \mathrm{~m}\) with uniform retardation. If total distance travelled is \(395 \mathrm{~m}\), find total time of travelling.

143746 A river is flowing from west to east with a speed of \(5 \mathrm{~m} / \mathrm{min}\). A man can swim in still water with a velocity \(10 \mathrm{~m} / \mathrm{min}\). In which direction should the man swim so, as to take the shortest possible path to go to the south?

143742 The speed of a boat is \(5 \mathrm{~km} / \mathrm{h}\) in still water. It crosses a river of width \(1.0 \mathrm{~km}\) along the shortest possible path in \(15 \mathrm{~min}\). The velocity of the river water is (in \(\mathrm{km} / \mathrm{h}\) )

143743 The speed of a swimmer in still water is \(20 \mathrm{~m} / \mathrm{s}\). The speed of river water is \(10 \mathrm{~m} / \mathrm{s}\) and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t. north is given by

143744 A ship A is moving Westwards with a speed of \(10 \mathrm{~km} \mathrm{~h}^{-1}\) and a ship \(B 100 \mathrm{~km}\) South of \(A\), is moving Northwards with a speed of \(10 \mathrm{kmh}^{-1}\). The time after which the distance between them becomes shortest is

143745 A metro train starts from rest and in 5 sec achieves \(108 \mathrm{~km} / \mathrm{h}\). After that it moves with constant velocity and comes to rest after travelling \(45 \mathrm{~m}\) with uniform retardation. If total distance travelled is \(395 \mathrm{~m}\), find total time of travelling.

143746 A river is flowing from west to east with a speed of \(5 \mathrm{~m} / \mathrm{min}\). A man can swim in still water with a velocity \(10 \mathrm{~m} / \mathrm{min}\). In which direction should the man swim so, as to take the shortest possible path to go to the south?