Home
Class 11
PHYSICS
The angles between the two vectors vecA=...

The angles between the two vectors `vecA=3hati+4hatj+5hatk` and `vecB=3hati+4hatj-5hatk` will be

A

`90^(@)`

B

`0^(@)`

C

`60^(@)`

D

`45^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • UNITS, DIMENSION & MEASUREMENTS

    ERRORLESS |Exercise All Questions|333 Videos

  • WAVES AND SOUND

    ERRORLESS |Exercise SET|25 Videos

Similar Questions

Explore conceptually related problems

The angle between the two vectors vecA=3hati+4hatj+5hatk and vecB=3hati+4hatj-5hatk will be :

The angle between the two vectors vecA=hati+2hatj-hatk and vecB=-hati+hatj-2hatk

Calculate the sine of the angle between the vectors vecA=3hati-4hatj+5hatk and vecB=-2hati+hatj-2hatk .

The angle between the two vectors A=3 hati+4hatj+5hatk and B=3hati+hatj-5hatk is

Find the sine of the angle between the vectors vec(A) = 3 hati - 4hatj +5hatk and vec(B) = hati - hatj +hatk .

Calculate the angle between the two vectors vecA=-2hati+hatj-3hatk and vecB =hati-2hatj+hatk

Find the angle between the vector vecr_(1)=(4hati-3hatj+5hatk) andvecr_(2)=(3hati+4hatj+5hatk) .

Find the angle 'theta' between the vector veca=2hati+3hatj-4hatk and vecb=3hati-2hatj+4hatk .

Find the angle between the vectors 3hati+4hatj and 2hatj-5hatk .

Diagonals of a parallelogram are respresented by vectors vecA = 5hati - 4hatj + 3hatk and vecB = 3hati +2hatj - hatk . Area of the parallelogram is :

ERRORLESS -VECTORS-Exercise
  1. Unit vector parallel to the resultant of vectors A = 4hati - 3hatj and...

    Text Solution

    |

  2. The component of vector A=2hati+3hatj along the vector hati+hatj is

    Text Solution

    |

  3. The angles between the two vectors vecA=3hati+4hatj+5hatk and vecB=3ha...

    Text Solution

    |

  4. There are two force vectors, one of 5 N and other of 12 N at what angl...

    Text Solution

    |

  5. If vecA=4hati-3hatj and vecB=6hati+8hatj then magnitude and direction ...

    Text Solution

    |

  6. A truck travelling due to north at 20m s^(-1) turns west and travels a...

    Text Solution

    |

  7. If the sum of two unit vectors is a unit vector,then find the magnitud...

    Text Solution

    |

  8. vecA=2hati+hatj,B=3hatj-hatk and vecC=6hati-2hatk. value of vecA-2ve...

    Text Solution

    |

  9. An object of m kg with speed of v m s^(-1) strikes a wall at an angle ...

    Text Solution

    |

  10. For the resultant of the two vectors to be maximum, what must be the a...

    Text Solution

    |

  11. A particle is simultaneously acted by two forces equal to 4 N and 3N. ...

    Text Solution

    |

  12. Two vectors vec(A) and vec(B) lie in plane, another vector vec(C ) lie...

    Text Solution

    |

  13. If the resultant of the two forces has a magnitude smaller than the ma...

    Text Solution

    |

  14. Forces F(1) and F(2) act on a point mass in two mutually perpendicular...

    Text Solution

    |

  15. If |vecA-vecB|=|vecA|=|vecB|, the angle between vecA and vecB is

    Text Solution

    |

  16. Let the angle between two nonzero vector vecA and vecB is 120^@ and it...

    Text Solution

    |

  17. A magnitude of vector vecA,vecB and vecC are respectively 12, 5 and 13...

    Text Solution

    |

  18. Magnitude of vector which comes on addition of two vectors, 6hati+7hat...

    Text Solution

    |

  19. A particle has displacement of 12m towards east and 5 m towards north ...

    Text Solution

    |

  20. The three vectors vecA=3hati-2hatj+hatk, vecB=hati-3hatj+5hatk and vec...

    Text Solution

    |