Home
Class 12
PHYSICS
A vector vecA points vertically upward a...

A vector `vecA` points vertically upward and `vecB` points towards north. The vector produce `vecAxxvecB` is

A

zero

B

along west

C

along east

D

vertically downward

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A vector vecA points vertically upward and vecB oints towards north. The vector product vecAxxvecB is

A vector vec(A) points verically upward and vec(B) points towards north. The vector product vec(A) xx vec(B) is

A vector vec A prints vertically upward and vec B points towards. What is the direction of vec A xx vec b ?

A Vector bar(P) points vertically downwards and another vector bar(Q) points towards north then. The vector bar(P)timesbar(Q) points towards.

If vecA along North and vecB vertically upward then the directions of vecAxxvecB is along

If for two vector vecA and vecB , vecAxxvecB=0 then

vecA and vecB and vectors expressed as vecA = 2hati + hatj and vecB = hati - hatj Unit vector perpendicular to vecA and vecB is:

Two vectros vecA and vecB are obtained by joining the origin to the points whose coordinates are (1,0,1-1) and (-1,1,1). Findteh magnitude of the vectors vecAxxvecB and the direction cosines of this vector.

If veca vecb be any two mutually perpendiculr vectors and vecalpha be any vector then |vecaxxvecb|^2 ((veca.vecalpha)veca)/(veca|^2)+|vecaxvecb|^2 ((vecb.vecalpha)vecb)/(|vecb|^2)-|vecaxxvecb|^2vecalpha= (A) |(veca.vecb)vecalpha|(vecaxxvecb) (B) [veca vecb vecalpha](vecbxxveca) (C) [veca vecb vecalpha](vecaxxvecb) (D) none of these

If two non-parallel vectors vecA and vecB are equal in magntiude, them vectors (vecA - vecB) and (vecA + vecB) will be :

ALLEN-BASIC MATHS-EXERCISE-1
  1. The angle between (vecAxxvecB) and (vecBxxvecA) is (in radian)

    Text Solution

    |

  2. The unit vector parallel to the resultant of the vectors vecA=4hati+3h...

    Text Solution

    |

  3. A vector vecA points vertically upward and vecB points towards north. ...

    Text Solution

    |

  4. Which of the following sets of concurrent force may be in equilibrium?

    Text Solution

    |

  5. Two vectors, both equal in magnitude, have their resultant equal in ma...

    Text Solution

    |

  6. A force (3hati+4hatj) newton acts on a boby and displaces it by (3hati...

    Text Solution

    |

  7. The vector vecP=ahati+ahatj+3hatj and vecQ=ahati-2hatj-hatk, are perpe...

    Text Solution

    |

  8. The vector sum of two forces is perpendicular to their vector differen...

    Text Solution

    |

  9. Three vectors veca,vecb and vecc satisfy the relation veca.vecb=0 and ...

    Text Solution

    |

  10. The direction of the angular velocity vector is along

    Text Solution

    |

  11. What is the projection of 3hati+3hatj+8hatk) is perpendicular to the v...

    Text Solution

    |

  12. If a vector (2hati+3hatj+ 8hatk) is perpendicular to the vector (4hatj...

    Text Solution

    |

  13. Square of the resultant of two forces of equal magnitude is equal to t...

    Text Solution

    |

  14. The vector vecA and vecB are such that |vecA+vecB|=|vecA-vecB|. The an...

    Text Solution

    |

  15. If |hatAxxvecB|=sqrt(3)vecA,vecB, then the value of |vecA+vecB| is :

    Text Solution

    |

  16. if|vecAxxvecB|=|vecA.vecB|, then angle between vecA and vecB will be

    Text Solution

    |

  17. A unit radial vector vecr makes agles of a=30^(@) relative to the x-ax...

    Text Solution

    |

  18. If hati,hatj and hatk represent unit vectors along the x,y and z-axes ...

    Text Solution

    |

  19. Find the torque (vectau=vecrxxvecF) of a force vecF=-3hati+hatj+3hatk ...

    Text Solution

    |

  20. Six vector vec(a) through vec(f) have the magnitudes and direction ind...

    Text Solution

    |