Home
Class 12
PHYSICS
A frame of reference F(2) moves with vel...

A frame of reference `F_(2)` moves with velocity `vecv` with respect to another frame `F_(1)`. When an object is observed from both frames, its velocity is found to be `vec(v_(1))` in `F_(1)` and `vec(v_(2))` is equal to

A

`vec(v_(1))+vecv`

B

`vec(v_(1))-vecv`

C

`vecv-vec(v_(1))`

D

`|vec(v_(1))-vecv|(vec(v_(1)))/(|vec(v_(1))|)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS, FORCES

    D MUKHERJEE|Exercise Type 2|22 Videos
  • IIT QUESTIONS 5

    D MUKHERJEE|Exercise Matrix matching type|2 Videos
  • MISCELLANEOUS QUESTION 1

    D MUKHERJEE|Exercise Miscellaneous Questions-1 (Straight-Objective Type)|54 Videos

Similar Questions

Explore conceptually related problems

If two bodies are in motion with velocity vec(v)_(1) and vec(v)_(2) :

STATEMENT -1 : For an observer looking out through the window of a fast moving train , the nearby objects appear to move in the opposite direction to the train , while the distant objects appear to be stationary . STATEMENT - 2 : If the observer and the object are moving at velocities vec v_(1) and vec v_(2) respecttively with refrence to a laboratory frame , the velocity of the object with respect to a laboratory frame , the velocity of the object with respect to the observer is vecv_(2) - vecv(1) . (a) Statement -1 is True, statement -2 is true , statement -2 is a correct explanation for statement -1 (b) Statement 1 is True , Statement -2 is True , statement -2 is NOT a correct explanation for statement -1 (c) Statement - 1 is True , Statement -2 is False (d) Statement -1 is False, Statement -2 is True

Statement I: A particle is found to be a rest when seen from a frame S_(1) and moving with a constant velocity when seen from another frame S_(2) . We can say both the frames are inertial. Statement II: All frames moving uniformly with respect to an inertial frame are themselves inertial.

When the observer moves towards the stationary source with velocity, v_1 , the apparent frequency of emitted note is f_1 . When the observer moves away from the source with velocity v_1 , the apparent frequency is f_2 . If v is the velocity of sound in air and f_1/f_2 = 2,then v/v_1 = ?

Two particles of masses m_(1) and m_(2) in projectile motion have velocities vec(v)_(1) and vec(v)_(2) , respectively , at time t = 0 . They collide at time t_(0) . Their velocities become vec(v')_(1) and vec(v')_(2) at time 2 t_(0) while still moving in air. The value of |(m_(1) vec(v')_(1) + m_(2) vec(v')_(2)) - (m_(1) vec(v)_(1) + m_(2) vec(v)_(2))|

Suppose a charged particle moves with a velocity v near a wire carrying an electric current. A magnetic force, therefore, acts on it. If the same particle is seen form a frame moving with velocity v in the same direction the charge will be found at rest. Will the magnetic force become zero in this frame? Will the magnetic field become zero in this frame?

A frame is rotating in a circle with varying speed v=(2t-4) m//s , where t is in second. An object is viewed from this frame. The pseudo force

D MUKHERJEE-KINEMATICS, FORCES-Revision Exercise
  1. A train of length 200m switches on its heat when it starts moving wio...

    Text Solution

    |

  2. A stick is thrown in the air and lands at some distance from the throw...

    Text Solution

    |

  3. A Car stats from rest and moves on a surface on which the coeffcient w...

    Text Solution

    |

  4. A unifrom chain of mass m hannges from a light pulley ,with unequal le...

    Text Solution

    |

  5. A ball of mass m is dropped onto a floor from a certain height. The co...

    Text Solution

    |

  6. An insect of mass m is initially at one end of a stick of length L and...

    Text Solution

    |

  7. Three ships A, B and C are in motion. The motion of A as seen by B is ...

    Text Solution

    |

  8. A point moving along the x-direction starts from rest at x=0 and comes...

    Text Solution

    |

  9. A man of mass m stands on a long flat car of mass M , moving with velo...

    Text Solution

    |

  10. A small body b starts from rest at the hightest point A of a large fi...

    Text Solution

    |

  11. A spring of force constant K rests on a smooth floor, with one end fix...

    Text Solution

    |

  12. A variable force F acts on a body which is free to move. The displacem...

    Text Solution

    |

  13. A cannon shell 1 and 2 km away from the cannon. A second shell, fired ...

    Text Solution

    |

  14. A unifrom heavy chain is placed on a table with a part of it hanging o...

    Text Solution

    |

  15. A block rests on a rough floor. A horizontal force which increases lin...

    Text Solution

    |

  16. A particle moving with velocity V changes its direction of motion by a...

    Text Solution

    |

  17. A frame of reference F(2) moves with velocity vecv with respect to ano...

    Text Solution

    |

  18. Two bodies of masses m and M are attached to the two ends of a light s...

    Text Solution

    |

  19. A particle starts from the origin of coordinates at time t = 0 and mov...

    Text Solution

    |

  20. A man holds a thin sticks at its two ends and bends it in an arc, like...

    Text Solution

    |