Home
Class 12
PHYSICS
If a vector of magnitude 10 units along ...

If a vector of magnitude 10 units along x-axis multiplied by a constant number 4, then new vector will be

A

`-10hati`

B

`40hati`

C

`4hatj`

D

`2.5hatj`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • Mock Test 39: PHYSICS

    AAKASH INSTITUTE|Exercise Example|26 Videos
  • Mock Test 40: PHYSICS

    AAKASH INSTITUTE|Exercise Example|27 Videos

Similar Questions

Explore conceptually related problems

A vector multiplied by the number 0, results into

The vector sum of two vectors of magnitudes 10 units and 15 units can never be

The vector sum of two vectors of magnitudes 10 units and 15 units can never be

vec A is a vector of magnitude 2.7 units due east . What is the magnitude and direction of vector 4 vecA ?

The resultant of two vectors of magnitudes 3 units and 5 units is perpendicular to 3 units.The angle between the vectors is

If vecA is a vector of magnitude 4 units due east. What is the magnitude and direction of a vector -4vecA ?

If vec(A) is a vector of magnitude 3 units due east. What is the magnitude and direction of a vector -4vec(A) ?

Find the vector of magnitude 5 units which is parallel to the vector 2hat i-4hat j

Find a vector of magnitude 4 units which is parallel to the vector sqrt(3)hat i+hat j

AAKASH INSTITUTE-MOCK TEST 4 -Example
  1. The component of a vector vecA along y-axis will have maximum value if

    Text Solution

    |

  2. If hatn is a unit vector in the direction of the vector vecA, then:-

    Text Solution

    |

  3. If a vector of magnitude 10 units along x-axis multiplied by a constan...

    Text Solution

    |

  4. The angle that the vector bar (OA)= 5hati + 5hatj mix with y-axis is

    Text Solution

    |

  5. If vecA=2hati + 3hatj and vecB= 5hati + 7hatj, then the vector having ...

    Text Solution

    |

  6. A vector is not changed if

    Text Solution

    |

  7. The unit vector of a vector vecA =2hati + 4hatj is

    Text Solution

    |

  8. If vecA= a hati + 0.5hatj + 0.5hatk is unit vector, then value of a w...

    Text Solution

    |

  9. If a vector bar(OP) = 3hati + 3hatj is turned clockwise by an angle of...

    Text Solution

    |

  10. Which one of the following quantities is a scalar ?

    Text Solution

    |

  11. The length of vector, vecA= 3hati +4hatj + 9hatk in y-z plane is

    Text Solution

    |

  12. Two force vectors vecF1 and vecF2 , each of magnitude 10 N act at a po...

    Text Solution

    |

  13. The resultant vector of of bar(OA) = 2hati + 3hatj + 6hatk and bar(OB)...

    Text Solution

    |

  14. If vecA + vecB = vecC and absA^2 + absB^2 = absC^2 , then angle betwee...

    Text Solution

    |

  15. The magnitude of resultant vectors of two vectors given by vecA = 10ha...

    Text Solution

    |

  16. The velocity vector at a point A varies with time as vecv=ahati+bthat...

    Text Solution

    |

  17. The velocity varies with time as vecv = ahati + bthatj , where a and ...

    Text Solution

    |

  18. vecP is resultant of vecA and vecB. vecQ is resultant of vecA and -vec...

    Text Solution

    |

  19. A particle moves along the parabolic path x = y^2 + 2y + 2 in such a w...

    Text Solution

    |

  20. When two vectors vecA and vecB of magnitudes a and b respectively are ...

    Text Solution

    |