Home
Class 11
PHYSICS
Refer to figure Find a the magnitude, b ...

Refer to figure Find a the magnitude, b x and y components and c. the angle with the X-axis of the resultant of `vec(OA), vec(BC) and vec(DE)`.
.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
x component of `vec(OA)=2 cos 30^@=sqrt(3)`
x component of `vec(BC)=1.5 cos 120^@` =- 1.5/2=-0.75)
x compon ent of `vec(DE)=1 cos 270^@`= `1xx0=0`,
Promotional Banner

Topper's Solved these Questions

  • PHYSICS AND MATHEMATICS

    HC VERMA|Exercise Objective 2|5 Videos

  • NEWTON'S LAWS OF MOTION

    HC VERMA|Exercise Exercises|42 Videos

  • REST AND MOTION : KINEMATICS

    HC VERMA|Exercise Exercises|51 Videos

Similar Questions

Explore conceptually related problems

The magnitude of vectors vec(OA), vec(OB) and vec (OC) in figure are equal. Find the direction of vec(OA)+vec(OB)-vec(OC) . .

Find the magnitude of the vectors vec a and vec b having same magnitude such that the angle between them is 30^(@) and vec a. vec b = 3

If vec(A) = 4 hat(i) - 3 hat(j) and vec(B) = 6 hat(i) + 8 hat(j) then obtain the scalar magnitude and directions from x-axis of vec(A), vec(B) , vec(A) + vec(B) and vec(A) - vec(B) .

If vec aa n d vec b are two vectors of magnitude 1 inclined at 120^0 , then find the angle between vec ba n d vec b- vec adot

Find the angle between the vecctors vec a and vec b with magnitudes 1 and 2 respectively and when vec a. vec b = sqrt(3)

The length of the perpendicular form the origin to the plane passing through the point a and containing the line vec r= vec b+lambda vec c is a. ([ vec a vec b vec c])/(| vec axx vec b+ vec bxx vec c+ vec cxx vec a|) b. ([ vec a vec b vec c])/(| vec axx vec b+ vec bxx vec c|) c. ([ vec a vec b vec c])/(| vec bxx vec c+ vec cxx vec a|) d. ([ vec a vec b vec c])/(| vec cxx vec a+ vec axx vec b|)

If O( vec0 ) is the circumcentre and O' the orthocentre of a triangle ABC, then prove that i. vec(OA)+vec(OB)+vec(OC)=vec(OO') ii. vec(O'A)+vec(O'B)+vec(O'C)=2vec(O'O) iii. vec(AO')+vec(O'B)+vec(O'C)=2 vec(AO)=vec(AP) where AP is the diameter through A of the circumcircle.

HC VERMA-PHYSICS AND MATHEMATICS-Exercises
  1. Find the magnitude of two vectors veca and vec b having the same magni...

    Text Solution

    |

  2. If veca=2veci+3vecj-4veck and vecb =5veci+2vecj+4veck, find the angle...

    Text Solution

    |

  3. Refer to figure Find a the magnitude, b x and y components and c. the ...

    Text Solution

    |

  4. Two vectors have magnitudes 3 unit and 4 unit respectively. What shoul...

    Text Solution

    |

  5. A spy report about a suspected car reads as follows. The car moved 2.0...

    Text Solution

    |

  6. A carrom board (4ftxx4ft ) has the queen at the centre. The queen hit ...

    Text Solution

    |

  7. A mosquito net over a 7ftxx4ft bed is 3 ft high. The net hs a hole at ...

    Text Solution

    |

  8. Suppose veca is a vector of magnitude 4.5 unit due north. What is the ...

    Text Solution

    |

  9. Two vectors have magnitudes 2 m and 3m. The angle between them is 60^0...

    Text Solution

    |

  10. Let A1 A2 A3 A4 A5 A6 A1 be a regular hexagon. Write the x-components ...

    Text Solution

    |

  11. If veca=2veci+3vecj-4veck and vecb =5veci+2vecj+4veck, find the angle...

    Text Solution

    |

  12. Prove that vecA.(vecAxxvecB)=0

    Text Solution

    |

  13. If veca=2veci+3vecj-4veck and vecb =5veci+2vecj+4veck, find the angle...

    Text Solution

    |

  14. If vecA,vecB,vecC are mutually perpendicular show that vecCxx(vecAxxve...

    Text Solution

    |

  15. A particle moves on a given straight line with a constant speed v. At ...

    Text Solution

    |

  16. The force on a charged particle due to electric and magnetic fields is...

    Text Solution

    |

  17. Give an example for which vecA.vecB=vecC.vecB but vecA!=vecC.

    Text Solution

    |

  18. If y= sin x and x changes from pi/2 to pi, the approximate change in y...

    Text Solution

    |

  19. The electric curren in a charging R-C circuit is given by i=i0e^(-t/RC...

    Text Solution

    |

  20. The electric current in a discharging R-C circuit is given by i=i0e^(-...

    Text Solution

    |