Home
Class 12
PHYSICS
A vector A points vertically upward and ...

A vector A points vertically upward and B points towards north.The vector product `A xx B` is

A

zero

B

along west

C

along east

D

vertically downward

Text Solution

Verified by Experts

The correct Answer is:
b
Let south to north is y axis & west toeast is x axis `rarr` down wards to upwards is z axis `rarr barA= Ahatk & bar B =B hatj` (According to right hand coordinate system
`rarrbarA xx barB =AB (hatk xxhatj)=AB hat i` i.e towards west
Promotional Banner

Topper's Solved these Questions

  • INTRODUCTION TO VECTORS & FORCES

    VMC MODULES ENGLISH|Exercise level 2|65 Videos

  • INTRODUCTION TO VECTORS & FORCES

    VMC MODULES ENGLISH|Exercise JEE Main ( ARCHIVE ) ( LEVEL-1)|12 Videos

  • INTRODUCTION TO VECTORS & FORCES

    VMC MODULES ENGLISH|Exercise JEE Advanced ( ARCHIVE LEVEL-2)|12 Videos

  • GRAVITATION

    VMC MODULES ENGLISH|Exercise JEE Advance (Archive) TRUE/FALSE|1 Videos

  • JEE MAIN - 5

    VMC MODULES ENGLISH|Exercise PART I : PHYSICS (SECTION - 2)|5 Videos

Similar Questions

Explore conceptually related problems

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

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

At a point in space, the eletric field points toward north. In the region surrounding this point, the rate of change of potential will be zero along.

The angular momentum vector for a spinning wheel lies along its axle and is pointed north. To make this vector point east with chagin magnitude it is necessary to exert a force of constant magnitude on the north end of the axle in which direction?

A particle is projected vertically upwards from a point A on the ground. It takes t_(1) time to reach a point B but it still continues to move up. If it takes further t_(2) time to reach the ground from point B then height of point B from the ground is :-

Two object A and B are moving each with velocities 10 m/s. A is moving towards East and B is moving towards North from the same point as shown. Find velocity of A relative to B (vecV_(AB))

If vec a and vec b are position vectors of points Aa n dB respectively, then find the position vector of points of trisection of A B .

If a and b are position vector of two points A,B and C divides AB in ratio 2:1, then position vector of C is

If the position vector of the poinot A is a+2b and a point P with position vector vec(a) divides a line segement AB in the ratio 2:3 then the position vector of the point B is

If vec a and vec b are two non-collinear vectors having the same initial point. What are the vectors represented by vec a+ vec b and vec a- vec b .

VMC MODULES ENGLISH-INTRODUCTION TO VECTORS & FORCES -level 1
  1. A car is moving on horizontal ground with a velocity vm s^(-1) with ...

    Text Solution

    |

  2. An aeroplane pilot wishes to fly due west A wind of 100 km h^-1 is blo...

    Text Solution

    |

  3. A train 100 m long travelling at 40 ms^(-1) starts overtaking another ...

    Text Solution

    |

  4. The diagram shows a train moving with constant velocity and a car movi...

    Text Solution

    |

  5. A bird is flying towards north with a velocity 40 km h^-1 and a train ...

    Text Solution

    |

  6. Given vectoroverset(rarr)A=2 hat I +3hatj , the angle between overset...

    Text Solution

    |

  7. If the vectors 2 hati +3 hat j +chatj and -3hat i+6hatk are orthogo...

    Text Solution

    |

  8. Consider a F = 4hati -3hatj . Another vector perpendicular to F is

    Text Solution

    |

  9. The angle between the two vector -2hati+3hatj+hatk and hati+2hatj-4hat...

    Text Solution

    |

  10. For any two vectors barA and barB if barA.barB=|bar AxxbarB|, the ma...

    Text Solution

    |

  11. The angle between vector (overset(rarr)Axxoverset(rarr)B) and (overset...

    Text Solution

    |

  12. what is the angle between (overset(rarr)P+overset(rarr)Q) and (overset...

    Text Solution

    |

  13. Which of the following is the unit vector perrpendicular to A and B?

    Text Solution

    |

  14. A vector A points vertically upward and B points towards north.The vec...

    Text Solution

    |

  15. Two vectors P=2hat I +bhat j +2hat k and Q=hat i+hat j+hat k will be ...

    Text Solution

    |

  16. What is the unit vector perpendicular to the following Vector 2hat(i)+...

    Text Solution

    |

  17. The magnitude of the vector product of two vectors is sqrt(3) times th...

    Text Solution

    |

  18. A and B are two vectors in a plane at an angle of 60^(@) with each oth...

    Text Solution

    |

  19. Projection of overset(rarr)P on overset(rarr)Q is :

    Text Solution

    |

  20. What is the projection of vector overset(rarr)A=4hat I +3 hatj on vec...

    Text Solution

    |