Home
Class 11
PHYSICS
vecA=2hati+hatj, vecB=2hatj-hatk and vec...

`vecA=2hati+hatj, vecB=2hatj-hatk` and `vecC=6hati-2hatk`. Value of `vecA-2vecB+3vecc` would be

A

`20hati+5hatj+4hatk`

B

`20hati-3hatj-4hatk`

C

`4hati+5hatj+20hatk`

D

`5hati+4hatj+10hatk`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENT

    PATHFINDER|Exercise QUESTION BANK|30 Videos

  • WAVE MOTION AND SOUND -I & II

    PATHFINDER|Exercise QUESTION BANK|195 Videos

Similar Questions

Explore conceptually related problems

If veca=2hati+3hatj+hatk, vecb=hati-2hatj+hatk and vecc=-3hati+hatj+2hatk , then [veca vecb vecc]=

A vector (vecd) is equally inclined to three vectors veca= hati - hatj + hatk, vecb = 2 hati + hatj and vecc = 3hatj - 2hatk let vecx ,vecy, vecz be three in the plane of veca, vecb ; vecb, vecc; vecc, veca respectively, then

If vecA= 5hati+6hatj+3hatk and vecB=6hati-2hatj-6hatk , then

Consider three vectors vecA =hati+hatj-2hatk,vecB=hati-hatj+hatk and vecC =2hati-3hatj+4hatk . A vector vecX of the form alpha vecA+betavecB(alpha and beta are numbers ) is perpendicular to vecC . The ratio of alpha and beta is

vecA =2hati+3hatj+4hatk and vecB=hati-hatj+hatk are two vectors. Find vecAxxvecB .

If veca=2hati+hatj-hatk and vecb=hati-hatk , then vector projection of veca on vecb will be :

Statement 1: vecA=2hati + 3hatj + 6hatk , vecB=hati + hatj - 2hatk and vecC=hati + 2hatj + hatk then |vecAxx (vecAxx(vecAxxvecB)).vecC|= 243 Statement 2: |vecAxx(vecAxx(vecAxxvecB)).vecC|=|vecA|^(2)|[vecA vecB vecC]|

PATHFINDER-VECTOR-I AND VECTOR-II-QUESTION BANK
  1. What is the angle between vecP and the resultant of (vecP+vecQ) and (v...

    Text Solution

    |

  2. The sum of the magnitudes of two forces acting at point is 18 and the ...

    Text Solution

    |

  3. vecA=2hati+hatj, vecB=2hatj-hatk and vecC=6hati-2hatk. Value of vecA-2...

    Text Solution

    |

  4. The angle between veca and vecb is 0^@ then angle between 2veca and -3...

    Text Solution

    |

  5. If theta be the angle between the vectors hati+hatj and 2hatj+2hatk, t...

    Text Solution

    |

  6. Scalar projection of the vector 2hati+3hatj+2hatk on the vector hati-2...

    Text Solution

    |

  7. If (vecA+vecB) is perpendicular to vecB and (vecA+2vecB) is perpendicu...

    Text Solution

    |

  8. Vector vecA of magnitude 4 units is directed along the positive x-axis...

    Text Solution

    |

  9. If two vectors vecC=vecA+vecB and vecD=vecA-vecB are at right angle to...

    Text Solution

    |

  10. The resultant of two forces vecF1 and vecF2 is P. If vecF2 is reversed...

    Text Solution

    |

  11. The X and Y=component of vecP and 7hati and 6hatj Also, the X and Y-co...

    Text Solution

    |

  12. Two vector vecA=3hati+8hatj-2hatk and vecB=6hati+16hatj+xhatk are such...

    Text Solution

    |

  13. Two vectors vecA and vecB have magnitudes 2 and 2sqrt2 respectively. I...

    Text Solution

    |

  14. (veca-vecb)xx(veca+vecb) is equal to

    Text Solution

    |

  15. The vector vecaxx(vecbxxveca) is

    Text Solution

    |

  16. vecA.(vecAxxvecB) is

    Text Solution

    |

  17. A vector vectorA points vertically downward and vecB points towards no...

    Text Solution

    |

  18. A force vecF=3hatj acts on the road a a point P(1,0,0). Then the torqu...

    Text Solution

    |

  19. The angle between the vector vecA and vecB is 0. The value of the trip...

    Text Solution

    |

  20. If veca and vecb are two vectors then the value of (veca+vecb) xx (vec...

    Text Solution

    |