Home
Class 12
MATHS
Find |vecx|, if for a unit vector veca,(...

Find `|vecx|`, if for a unit vector `veca,(vecx-veca).(vecx+veca)=15`

Promotional Banner

Topper's Solved these Questions

  • VECTORS

    MODERN PUBLICATION|Exercise Exercise|500 Videos

  • UNIT TEST-4

    MODERN PUBLICATION|Exercise EXERCISE|13 Videos

Similar Questions

Explore conceptually related problems

Find |vecx| , if for a unit vector veca , (vecx - veca)cdot(vecx+veca) = 12

Find vec abs x , if for a unit vector veca , (vecx-veca).(vecx+veca)=8

If veca is a unit vector and (vecx-veca).(vecx+veca)=255 then find |vecx|

If veca is a unit vector and (vecx - veca) cdot (vecx + veca) = 8 , then find |vecx|

If veca is a unit vcetor and (vecx-veca)*(vecx+veca)=80 , then find |vecx| .

If vecp is a unit vector and (vecx-vecp).(vecx+vecp)=80 , then find |\vecx| .

MODERN PUBLICATION-VECTORS-Exercise
  1. Find |vecx|, if for a unit vector veca,(vecx-veca).(vecx+veca)=15

    Text Solution

    |

  2. Represent graphically a displacement of 40 km, 30^o west of south.

    Text Solution

    |

  3. Represent the following graphically a displacement of : 40 km, 30^@ ea...

    Text Solution

    |

  4. Represent the following graphically a displacement of : 40 km, 30^@ ea...

    Text Solution

    |

  5. Classify the following measure as scalar and vector: 10 Kg

    Text Solution

    |

  6. Classify the following measure as scalar and vector: 40^o

    Text Solution

    |

  7. Classify the following measure as scalar and vector: 2 meters north-w...

    Text Solution

    |

  8. Classify the following measure as scalar and vector:40watt

    Text Solution

    |

  9. Classify the following measure as scalar and vector: 10^(-19)coulomb

    Text Solution

    |

  10. Classify the following measure as scalar and vector: 20 m/s^2

    Text Solution

    |

  11. Classify the following measures as scalars and vectors: 1000 cm^3

    Text Solution

    |

  12. Classify the following measures as scalars and vectors: 10 N

    Text Solution

    |

  13. Classify the following measures as scalars and vectors: 30 km/h

    Text Solution

    |

  14. Classify the following as scalar and vector quantities: time period

    Text Solution

    |

  15. Classify the following as scalar and vector quantities: distance

    Text Solution

    |

  16. Classify the following as scalar and vector quantities: force

    Text Solution

    |

  17. Classify the following as scalar and vector quantities: velocity

    Text Solution

    |

  18. Classify the following as scalar and vector quantities:work done

    Text Solution

    |

  19. In the figure identify the following vectors : Co-initial.

    Text Solution

    |

  20. In the figure identify the following vectors : Equal.

    Text Solution

    |

  21. A girl walks 4 km towards west, then she walks 3 km in a direction 30^...

    Text Solution

    |