Home
Class 11
PHYSICS
The velocity of a projectile at the inti...

The velocity of a projectile at the intital pont A is `(2 hat i + 3 hat j ) m//s`. It's velocity (in m//s) at the piont B is [fig.]
.

A

`2 hat i - 3 hat j`

B

`2 hat i + 3 hat j`

C

`-2 hat i - 3 hat j`

D

`-2 hat i + 3 hat j`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    JBD PUBLICATION|Exercise EXAMPLE|163 Videos

  • GRAVITATION

    JBD PUBLICATION|Exercise EXAMPLE|78 Videos

  • LAWS OF MOTION

    JBD PUBLICATION|Exercise EXAMPLE|168 Videos

Similar Questions

Explore conceptually related problems

Evaluate the following products: (2 hat i+3 hat j)*(-hat i+3 hat j +hat k) .

Find the projection of the vector vec a = 2 hat i+ 3 hat j+ 2 hat k on the vector vec b= hat i+ 2 hat j+ hat k .

Find the magnitude of vec a=(hat i+3 hat j- 2 hat k)*(-hat i+3 hat k) .

Find vec a* vec b if vec a=3 hat i+4 hat j-2 hat k and vec b=-2 hat i+ 2 hat j + hat k

Evaluate the following products: (3 hat i-6 hat j+2 hat k)*(2 hat i+hat j-2 hat k) .

Find the value of lambda so that the vectors vec a= 3 hat i + 3 hat j- lambda hat k and vec b= 2 hat i- hat j+ hat k are perpendicular to each other.

Find a vector of magnitude 5 units, and parallel to the resultant of the vectors vec a =2 hat i+3 hat j- hat k and vec b= hat i-2 hat j+hat k .

The angle between A = hat i + hat j and B = hat i - hat j is :

Show that the points A(-2 hat i+ 3 hat j + 5 hat k) , B(hat i+ 2 hat j+ 3 hat k) and C(7 hat i-hat k) are collinear.

If vec a =2 hat i + 2 hat j +3 hat k, vec b=-hat i + 2 hat j +hat k then vec a + vec b is

JBD PUBLICATION-KINEMATICS-EXAMPLE
  1. The velocity of a projectile at the intital pont A is (2 hat i + 3 hat...

    Text Solution

    |

  2. Is it possible that the velocity of an object be in a direction other ...

    Text Solution

    |

  3. Under what condition is the relation S= ut correct?

    Text Solution

    |

  4. The displacement of a particle is directly proportional to the square ...

    Text Solution

    |

  5. A player throws a ball upwards with an initial speed of 29.4 m s^-1 :-...

    Text Solution

    |

  6. What will be the shape of displacement-time graph when acceeration or ...

    Text Solution

    |

  7. Can a constant acceleration change the direction of motion of an objet...

    Text Solution

    |

  8. Which of the two velcotiy and acceleration, gives the direction of mot...

    Text Solution

    |

  9. How can the distance travelled by an object be calculated from the vel...

    Text Solution

    |

  10. What will be the shape of displacement-time graph when acceeration or ...

    Text Solution

    |

  11. If overset rarr A + overset rarr B = overset rarr A - overset rarr B,...

    Text Solution

    |

  12. What is subtraction of a vector?

    Text Solution

    |

  13. Vectors cannot be added algebraically. Why?

    Text Solution

    |

  14. Is commutative law applicable too vector subtraction?

    Text Solution

    |

  15. If overset rarr A = 2 hati + 5 hat j,what is the unit vector perpendic...

    Text Solution

    |

  16. What is unit vector?

    Text Solution

    |

  17. Is the magnitude of (overset rarr A - overset rarr B) same as that of ...

    Text Solution

    |

  18. A vector of magnitude 5,makes an angle 60^@ with the y-axis .Express t...

    Text Solution

    |

  19. At what points on the projectile trajectory is the speed minimum

    Text Solution

    |

  20. What is the vertical component of velocity of a projectile at its maxi...

    Text Solution

    |

  21. Shells of different masses are fired from a cannon at same angle with ...

    Text Solution

    |