Physics-
General
Easy

Question

A man crosses a river through shortest distance D as given in the figure. stack V with rightwards arrow on top subscript R end subscript is velocity of water andblank stack V with rightwards arrow on top subscript m end subscript blankis velocity of man in still river water.blank stack V with rightwards arrow on top subscript m R end subscript is relative velocity of man w.r.t. river, then find the angle made by swimming man with the shortest distance AB

  1. t a n to the power of negative 1 end exponent invisible function application fraction numerator V subscript R end subscript over denominator V subscript m end subscript minus V subscript H end subscript end fraction    
  2. t a n to the power of negative 1 end exponent invisible function application fraction numerator V subscript m end subscript over denominator square root of V subscript R to the power of 2 end exponent end subscript minus V subscript m to the power of 2 end exponent end subscript end root end fraction    
  3. 1 invisible function application fraction numerator V subscript k end subscript over denominator square root of V subscript m to the power of 2 end exponent end subscript subscript blank minus V subscript R to the power of 2 end exponent end subscript end root end fraction    
  4. t a n to the power of negative 1 end exponent invisible function application fraction numerator V subscript R end subscript over denominator square root of V subscript R to the power of 2 end exponent end subscript end root minus V subscript m to the power of 2 end exponent end subscript end fraction    

The correct answer is: 1 invisible function application fraction numerator V subscript k end subscript over denominator square root of V subscript m to the power of 2 end exponent end subscript subscript blank minus V subscript R to the power of 2 end exponent end subscript end root end fraction

Related Questions to study

General
physics-

Graphs velocity → time is given for cars A and B moving in a straight line in same direction. At time t=0 they are moving in the direction from A to B, then.

Graphs velocity → time is given for cars A and B moving in a straight line in same direction. At time t=0 they are moving in the direction from A to B, then.

physics-General
General
physics-

Graphs of velocity rightwards arrow time for two cars A and B moving in a straight line are given in the fig. The area covered by PQRS gives.

Graphs of velocity rightwards arrow time for two cars A and B moving in a straight line are given in the fig. The area covered by PQRS gives.

physics-General
General
physics

An artificial satellite moving in a circular orbit around earth has a total (kinetic + potential energy) E0, its potential energy is

An artificial satellite moving in a circular orbit around earth has a total (kinetic + potential energy) E0, its potential energy is

physicsGeneral
parallel
General
physics-

In the above triangle A C equals 5 comma B C equals 8 and B equals fraction numerator pi over denominator 6 end fraction Find the value of angle A.

In the above triangle A C equals 5 comma B C equals 8 and B equals fraction numerator pi over denominator 6 end fraction Find the value of angle A.

physics-General
General
physics

A body of mass m is taken from earth surface to the height h equal to radius of earth, the, increase in potential energy will be

A body of mass m is taken from earth surface to the height h equal to radius of earth, the, increase in potential energy will be

physicsGeneral
General
physics

If the radius of the earth were to shrink by 1% its mass remaing the same, the accelration due, to gravity on the earth's surface would

If the radius of the earth were to shrink by 1% its mass remaing the same, the accelration due, to gravity on the earth's surface would

physicsGeneral
parallel
General
maths-

Conserve the following statements:
A: Angle between 2 ı with not stretchy bar on top minus m ȷ with not stretchy bar on top plus 3 m k with not stretchy bar on top text  and  end text left parenthesis 1 plus m right parenthesis ı with not stretchy bar on top minus 2 m ȷ with not stretchy bar on top plus k with not stretchy bar on top text  is acute  end text not stretchy rightwards double arrow m not an element of open square brackets negative 2 comma negative 1 half close square brackets
text  R: If  end text left parenthesis a with not stretchy bar on top comma b with not stretchy bar on top right parenthesis text  is acute then  end text a with not stretchy bar on top times b with not stretchy bar on top greater than 0 text  If  end text left parenthesis a with not stretchy bar on top comma b with not stretchy bar on top right parenthesis text  is obtuse then  end text a with not stretchy bar on top times b with not stretchy bar on top less than 0

Conserve the following statements:
A: Angle between 2 ı with not stretchy bar on top minus m ȷ with not stretchy bar on top plus 3 m k with not stretchy bar on top text  and  end text left parenthesis 1 plus m right parenthesis ı with not stretchy bar on top minus 2 m ȷ with not stretchy bar on top plus k with not stretchy bar on top text  is acute  end text not stretchy rightwards double arrow m not an element of open square brackets negative 2 comma negative 1 half close square brackets
text  R: If  end text left parenthesis a with not stretchy bar on top comma b with not stretchy bar on top right parenthesis text  is acute then  end text a with not stretchy bar on top times b with not stretchy bar on top greater than 0 text  If  end text left parenthesis a with not stretchy bar on top comma b with not stretchy bar on top right parenthesis text  is obtuse then  end text a with not stretchy bar on top times b with not stretchy bar on top less than 0

maths-General
General
physics

Suppose the gravitational force varies inversely as the nth power of distance the time period of planet in circular orbit of radius R around the sun will be proportional to

Suppose the gravitational force varies inversely as the nth power of distance the time period of planet in circular orbit of radius R around the sun will be proportional to

physicsGeneral
General
physics-

stack A with rightwards arrow on top equals 3 stack i with hat on top plus 2 stack j with ˆ on top minus 5 stack k with ˆ on top and stack B with minus on top equals stack i with ˆ on top plus stack j with ˆ on top plus 2 stack k with ˆ on top Find vertical line stack A with rightwards arrow on top plus 2 stack B with minus on top vertical line

stack A with rightwards arrow on top equals 3 stack i with hat on top plus 2 stack j with ˆ on top minus 5 stack k with ˆ on top and stack B with minus on top equals stack i with ˆ on top plus stack j with ˆ on top plus 2 stack k with ˆ on top Find vertical line stack A with rightwards arrow on top plus 2 stack B with minus on top vertical line

physics-General
parallel
General
physics

A thin uniform annular disc (See figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a unit mass from point  on its axix to infinity is....

A thin uniform annular disc (See figure) of mass M has outer radius 4R and inner radius 3R. The work required to take a unit mass from point  on its axix to infinity is....

physicsGeneral
General
chemistry-

Aluminium chloride exists as dimer, A l subscript 2 end subscript C l subscript 6 end subscript in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

Aluminium chloride exists as dimer, A l subscript 2 end subscript C l subscript 6 end subscript in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

chemistry-General
General
chemistry-

Which of the following is a non-metal.</strong

Which of the following is a non-metal.</strong

chemistry-General
parallel
General
physics

What does not change in the field of central force

What does not change in the field of central force

physicsGeneral
General
physics

If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to

If r denotes the distance between the sun and the earth, then the angular momentum of the earth around the sun is proportional to

physicsGeneral
General
physics-

Which from the following is a scalar ?

Which from the following is a scalar ?

physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.