A swimmer crosses a river in shortest distance

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Use app Login. If a swimmer wishes to cross a river in the shortest path find the direction in which he should swim to achieve this. The velocity of river current is 4 k p h and the swimmer can swim relative to water at 5 k p h. Open in App. Verified by Toppr. Similar Questions. A swimmer can swim in still water with speed v and the river flowing with velocity v 2.

A swimmer crosses a river in shortest distance

Submitted by Jeremy T. Solved by verified expert. We will assign your question to a Numerade educator to answer. A swimmer crosses a river in the shortest distance. Your personal AI tutor, companion, and study partner. Ask unlimited questions and get video answers from our expert STEM educators. Millions of real past notes, study guides, and exams matched directly to your classes. He crosses the river in shortest possible time. He is drifted downstream on reaching the other bank by a distance of. A boat takes 3 minutes to travel 1 km downstream and 4 minutes to travel the same distance upstream. A swimmer crosses a river in shortest distance.

Teaches : Physics, Biology, Organic Chemistry. Swimmer takes 12 seconds to cross the river of width 60 m. Subhra, 4 years ago.

A swimmer crosses a flowing stream of width. The time taken to cover the same distance up and down the stream is t 2. If t 3 is the time the swimmer would take to swim a distance 2d in still water, then n. A swimmer crosses a flowing stream of width d toand from in time t 1. Then the time the swimmer would take to swim a distnace 2d in still water is. A swimmer crosses a flowing stream of width d to and fro normal to the flow of the river at time t 1. It will take time for the swimmer to cover the 2d distance in still water.

On occasion objects move within a medium that is moving with respect to an observer. For example, an airplane usually encounters a wind - air that is moving with respect to an observer on the ground below. As another example, a motorboat in a river is moving amidst a river current - water that is moving with respect to an observer on dry land. In such instances as this, the magnitude of the velocity of the moving object whether it be a plane or a motorboat with respect to the observer on land will not be the same as the speedometer reading of the vehicle. Motion is relative to the observer. The observer on land, often named or misnamed the "stationary observer" would measure the speed to be different than that of the person on the boat. The observed speed of the boat must always be described relative to who the observer is.

A swimmer crosses a river in shortest distance

Home » Physics » Problem » What condition is satisfied if the swimmer desires to swim minimum distance to cross the river? When he crosses a river with shortest time one component of boat velocity is opposite to velocity of water and other component is perpendicular to velocity of water. Therefore if the reverberation time becomes too large it produces an echo. So option 2 is correct. The boat cannot cross the river to an exactly opposite point.

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If the time taken against the stream to cover a certain distance is three times as compared to the time taken along the stream, then what is the speed kilometer per hour of the stream? A swimmer crosses a river in shortest distance. Please Enter valid Mobile. Here, is the velocity of swimmer w. Updated on: Jan 5, Verified by Toppr. Your personal AI tutor, companion, and study partner. View Solution. Text Solution. Ace Chat Your personal AI tutor, companion, and study partner.

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The velocity of river current is 4 k p h and the swimmer can swim relative to water at 5 k p h. The time taken by him to cross the 1 km wide river is 1 30 min 2 1 hr 3 2 hrs 4 20 min. If a swimmer wishes to cross a river in the shortest path find the direction in which he should swim to achieve this. Students who ask this question also asked Question 1. Please choose valid name. Physics Mechanics. Connect instantly with this tutor Connect now. One destination to cover all your homework and assignment needs. A swimmer ca Verified by Toppr. Ace Chat Your personal AI tutor, companion, and study partner. Open in App.