Home
Class 12
PHYSICS
Two swimmers P and Q start swimming from...

Two swimmers P and Q start swimming from different positions on the same bank as shown in the figure. The swimmer P swims at an angle `90^(@)` with respect to the river to reach point A. He takes 120 second to cross the river of width 10m. The swimmer Q also takes the same time to reach the point A. the velocity component of Q along x-axis with respect to ground is K/24. Find the value of K.

Text Solution

Verified by Experts

from `P V_("swimmer")=(10)/(120)=(1)/(12)ms^(-1)`
`V_("river")=(30)/(120)=(1)/(4)ms^(-1)`
For `Q x=UxxtrArr25=(K)/(24)xx120`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART (A)|32 Videos
  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART (B)|3 Videos
  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART- C|4 Videos
  • SEMICONDUCTORS

    BANSAL|Exercise CBSE Question|32 Videos

Similar Questions

Explore conceptually related problems

Two swimmers A and B start swimming from different positions on the same bank as shown in figure.The swimmer A swims at angle 90^(@) with respect to the river to reach point P .He takes 120 seconds to cross the river of width 10m .The swimmer B also takes the same time to reach the point P

A swimmer crosses the river along the line making an angle of 45^(@) with the direction of flow. Velocity of the river is 5 m/s. Swimmer takes 6 seconds to cross the river of width 60 m. The velocity of the swimmer with respect to water will be :

A swimmer swims due to

A swimmer crosses the river along the line making an angle of 45^@ with the direction of flow. Velocity of the river water is 5(m)/(s) . Swimmer takes 12 seconds to cross the river of width 60 m. The velocity of the swimmer with respect to water will be:

A swimmer wishes to reach directly opposite bank of a river, flowing with velocity 8 m/s. The swimmer can swim 10 m/s still water. The width of the river is 480 m. Time taken by him to do so:

A swimmer crosses a river of width d flowing at velocity v. While swimming, he keeps himself always at an angle of 120^(@) with the river flow and on reaching the other end. He finds a drift of d/2 in the direction of flow of river. The speed of the swimmer with respect to the river is :

The stream of a river is flowing with a speed of 2 km/h. A swimmer can swim at a speed of 4 km/h. What should be the direction of the swimmer with respect to the flow of the river to cross the river straight?

Velocity of a swimmer with respect to a river is (hat i+4hat j)m/s and velocity of the river flow is (2hat j)m/s then velocity of swimmer with respect to ground is (in m/s)

BANSAL-TEST PAPERS-PHYSICS
  1. Column-I shows a-t graph and column-II shows v-t graph. Mathc the colu...

    Text Solution

    |

  2. A particle is projected from point A perpendicular to inclined plane w...

    Text Solution

    |

  3. Two swimmers P and Q start swimming from different positions on the sa...

    Text Solution

    |

  4. The drug coefficient C(v) of an automobile is determined from the expe...

    Text Solution

    |

  5. An airplane is observed by two persons travelling at 60 km/hour in two...

    Text Solution

    |

  6. The position of a particle along x-axis at time t is given by x=1-t+t^...

    Text Solution

    |

  7. The resultant of 2 forces of magnitude 1N and 13N is 6sqrt(5)N. Find t...

    Text Solution

    |

  8. What is maximum number of electron in an atom whose highest energy ele...

    Text Solution

    |

  9. Find minimum value of atomic number for which all orbitals of n=3 are ...

    Text Solution

    |

  10. If spin quantum number has 4 possible values. S=+1,-1,+(1)/(2),-(1)/...

    Text Solution

    |

  11. How many set of 4 quantum numbers are possible for last electron of Sc...

    Text Solution

    |

  12. A particle is projected wityh velocity 20 ms^(-1) at angle 60^(@) abov...

    Text Solution

    |

  13. A swimmer can swim with 5ms^(-1) in still water. He wants to cross a r...

    Text Solution

    |

  14. Figure shown V(y)-t graph of a particle projected from the ground. The...

    Text Solution

    |

  15. Block M slide donw on frictionless inclined plane as shown. Find frict...

    Text Solution

    |

  16. Two particles are projected from two points 4m apart on the horizontal...

    Text Solution

    |

  17. A block is thrown with 14ms^(-1) over a long stationary plank as shown...

    Text Solution

    |

  18. A 60kg man is running on horizontal road with acceleration 2ms^(-1) fr...

    Text Solution

    |

  19. In a uniform circular motion, choose correct statement(s):

    Text Solution

    |

  20. A particle is doing uniform circular motion as shown. Magnitude of ave...

    Text Solution

    |