A swimmer crosses a river in shortest distance

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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 river in shortest distance

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. What is the ratio of the time taken to swim across in the shortest time to that in swimming across over shortest distance? View Solution. A river is flowing from West to East at a speed of 5 m per min. If a swimmer standing on South bank of the river wants to swim across the river in the shortest time, then he should swim in a direction speed of swimmer in still water.

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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. To illustrate this principle, consider a plane flying amidst a tailwind. A tailwind is merely a wind that approaches the plane from behind, thus increasing its resulting velocity. The resultant velocity of the plane that is, the result of the wind velocity contributing to the velocity due to the plane's motor is the vector sum of the velocity of the plane and the velocity of the wind.

A swimmer crosses a river in shortest distance

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Text Solution. NEET Courses. To View your Question Click Here. Click Here Know More. Was this answer helpful? Updated on: Jan 5, So we developed a line of study tools to help students learn their way. Differentiate between plant and animal cell. Swimmer takes 12 seconds to cross the river of width 60 m. Try it in the Numerade app? High dosage tutoring from Dedicated 3 experts.

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Please add your first playlist. View Solution. Differentiate between plant and animal cell. Swimmer takes 12 seconds to cross the river of width 60 m. More Than Just We take learning seriously. To View your Question Click Here. If he tries to. Enter email id Enter mobile number. How far down the river does he go when he reaches the other bank? Ask unlimited questions and get video answers from our expert STEM educators.