Home
Class 12
PHYSICS
A butterfly is flying with velocity 10ha...

A butterfly is flying with velocity `10hati +12hatj m//s` and wind is blowing along `x` axis with velocity `u` . If butterfly starts motion from `A` and after some time reaches point `B`, find the value of `u`.

Text Solution

Verified by Experts

6m/s
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    MOTION|Exercise EXERCISE 3 SUBJECTIVE PROBLEMS (Level-2)|15 Videos

  • KINEMATICS

    MOTION|Exercise EXERCISE 4 PREVIOUS YEAR (LEVEL 1)|22 Videos

  • KINEMATICS

    MOTION|Exercise EXERCISE 2 OBJECTIVE PROBLEMS (Level-2)|26 Videos

  • HYDROSTATIC, FLUID MECHANICS & VISCOSITY

    MOTION|Exercise EXERCISE -3 (SECTION-B) PREVIOUS YEAR PROBLEM|7 Videos

  • KINETIC THEORY OF GASES

    MOTION|Exercise EXERCISE-3 SECTION-B|16 Videos

Similar Questions

Explore conceptually related problems

A butterfly is flying with a velocity 4 sqrt(2) m//s in North-East direction. Wind is slowly blowing at 1 m/s from North to South. The resultant displacement of the butterfly in 3 seconds is :

A body is projected vertically upwards with some velocity u . It at the same point at t = 6 s as was at t = 4 s . Find the value of u .

Velocity time graphs of particles A and B moving along x -axis are shown here. Both A and B start from origin:

Three particles start from the origin at the same time, one with velocity u_1 along the x-axis, the second with velocity u_2 along the y-axis . Find the velocity of the third particles, along the x=y line so that the three particles may always lie on the same straight line.

An object is projected with velocity vecv_(0) = 15hatj + 20hatj . Considering x along horizontal axis and y along vertical axis. Find its velocity after 2s.

A body projected vertically upwards with a velocity u returns to the starting point in 4 seconds. If g = 10m//sec , the value of u is

(a) A particle moving with constant acceleration from A to B in a straight line AB has velocities u and v at A and B respectively. Find the velocity of the particle at the midpoint of AB . (b) If the time taken by the particle to go from A to the midpoint of AB is two times that from the midpoint of AB to B then find the value of v//u .

A particle at origin (0,0) moving with initial velocity u = 5 m/s hatj and acceleration 10 hati + 4 hatj . After t time it reaches at position (20,y) then find t & y

A projectile is given an initial velocity of (hati+2hatj)m/s , where hati is along the ground and hatj is along the vertical. If g=10m/s^-2 , the equation of its trajectory is

MOTION-KINEMATICS-EXERCISE 3 SUBJECTIVE PROBLEMS (Level-1)
  1. The position vector of a particle moving in x-y plane is given by vec(...

    Text Solution

    |

  2. A particle moves along the space curve vec(r)=(t^(2)+t)hat(i)+(3t-2)ha...

    Text Solution

    |

  3. At time t the position vector of a particle of mass m=3kg is given by ...

    Text Solution

    |

  4. Velocity of car v is given by v = at – bt^2 , where a and b are positi...

    Text Solution

    |

  5. A stone is dropped from a height h. Simultaneously another stone is th...

    Text Solution

    |

  6. A ballon is ascending vertically with an acceleration fo 0.2m//s^(2). ...

    Text Solution

    |

  7. The velocity time graph of a body moving in a straight line is shown. ...

    Text Solution

    |

  8. The velocity- time graph of the particle moving along a straight line ...

    Text Solution

    |

  9. The force acting on a body moving in a straight line is given by F = (...

    Text Solution

    |

  10. A particle moves in xy plane such that v(x)=50-16 t and y=100-4t^(2) w...

    Text Solution

    |

  11. A particle is projected in the X-Y plane. 2 sec after projection the v...

    Text Solution

    |

  12. A particle is projected upwards with a velocity of 100 m//s at an angl...

    Text Solution

    |

  13. A particle is projected in x-y plane with y-axis along vertical, the p...

    Text Solution

    |

  14. A rocket is launched at an angle 53^(@) to the horizontal with an init...

    Text Solution

    |

  15. Two particles are moving along two long straight lines, in the same pl...

    Text Solution

    |

  16. A butterfly is flying with velocity 10hati +12hatj m//s and wind is bl...

    Text Solution

    |

  17. A man with some passengers in his boat, starts perpendicular to flow o...

    Text Solution

    |

  18. A man crosses a river in a boat. If he cross the river in minimum time...

    Text Solution

    |

  19. Rain is falling vertically with a speed of 20ms^(-1)., A person is run...

    Text Solution

    |

  20. A glass wind screen whose inclination with the vertical can be changed...

    Text Solution

    |