362082 A steam boat goes across a lake and comes back \((i)\) on a quiet day when the water is still and \((ii)\) on a rough day when there is a uniform current so as to help the journey on wards and to impede the journey back. If the speed of the launch on both days was same, the time required for complete journey on the rough day, as compared to the quiet day will be
362084 The speed of a swimmer in still water is 20 \(m\)/\(s\). The speed of river water is 10 m/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 :
362082 A steam boat goes across a lake and comes back \((i)\) on a quiet day when the water is still and \((ii)\) on a rough day when there is a uniform current so as to help the journey on wards and to impede the journey back. If the speed of the launch on both days was same, the time required for complete journey on the rough day, as compared to the quiet day will be
362084 The speed of a swimmer in still water is 20 \(m\)/\(s\). The speed of river water is 10 m/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 :
362082 A steam boat goes across a lake and comes back \((i)\) on a quiet day when the water is still and \((ii)\) on a rough day when there is a uniform current so as to help the journey on wards and to impede the journey back. If the speed of the launch on both days was same, the time required for complete journey on the rough day, as compared to the quiet day will be
362084 The speed of a swimmer in still water is 20 \(m\)/\(s\). The speed of river water is 10 m/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 :
362082 A steam boat goes across a lake and comes back \((i)\) on a quiet day when the water is still and \((ii)\) on a rough day when there is a uniform current so as to help the journey on wards and to impede the journey back. If the speed of the launch on both days was same, the time required for complete journey on the rough day, as compared to the quiet day will be
362084 The speed of a swimmer in still water is 20 \(m\)/\(s\). The speed of river water is 10 m/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 :