Home
Class 11
PHYSICS
If the resultant of two forces of magnit...

If the resultant of two forces of magnitudes P and Q acting at a point at an angle of `60^@` is `sqrt7` Q, then P/Q is :

A

1

B

44230

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENT

    PATHFINDER|Exercise QUESTION BANK|30 Videos
  • WAVE MOTION AND SOUND -I & II

    PATHFINDER|Exercise QUESTION BANK|195 Videos

Similar Questions

Explore conceptually related problems

Two forces of magnitudes P and 2Q are inclined to each other at an angle of 150^@ . If the resultant force is perpendicular to P , show that P=sqrt(3)Q .

The magnitude of the resultant of two forces P and Q acting at a point is (2m+1) sqrt(P^2+Q^2) When the angle between them is alpha , and is (2m-1) sqrt(P^2+Q^2) when the angle is ((pi)/(2)-alpha) . Prove that, tan alpha=(m-1)/(m+1) .

Resulatant of two forces, P and Q acting at a point is R. On doubling Q, resultant also doubles. The magnitude of the resultant also doubles when the direction of Q is made opposite. Show that P:Q:R=sqrt(2):sqrt(3):sqrt(2) .

Two forces of equal magnitude act simultaneously on a partical. If the resultant of the forces is equal to the magnitude of each of then the angle between the forces is

If P and Q are any two set then P-Q=

Resultant of two forces P and Q is sqrt(3) Q . The resultant is inclined at 30^@ with P . Show that, either P =Q or P=2Q.

The resultant of two forces P and Q is 5 sqrt(P^2+Q^2) when the angle between them is alpha . When the angle changes to (90^@-alpha) , the resultant becomes 3sqrt(P^2+Q^2) . Show that, tan alpha =1/3 .

PATHFINDER-VECTOR-I AND VECTOR-II-QUESTION BANK
  1. Choose the scalar quantity :

    Text Solution

    |

  2. Choose the scalar quantity :

    Text Solution

    |

  3. If the resultant of two forces of magnitudes P and Q acting at a point...

    Text Solution

    |

  4. If (veca+vecb) is perpendicular to vecb and veca+2vecb is perpendicula...

    Text Solution

    |

  5. Two equal forces act at a point. The square of their resultant is thre...

    Text Solution

    |

  6. The resultant of two forces at right angles is 17 N. If the maximum re...

    Text Solution

    |

  7. Two force of 12 N and 9 N are acting a point. The ratio of the magnitu...

    Text Solution

    |

  8. A parallelogram is formed with veca and vecb as the sides. Let vecd1 a...

    Text Solution

    |

  9. The sum of two forces acting at a point is 16 N. If the resultant forc...

    Text Solution

    |

  10. Given that vecR=vecP+vecQ and vecR makes angle alpha with vecP and bet...

    Text Solution

    |

  11. veca,vecb and vecc are three orthogonal vectors with magnitudes 3, 4 a...

    Text Solution

    |

  12. If absvecA=absvecB and vecAbotvecB,then the angles between 3(vecA-vecB...

    Text Solution

    |

  13. If A=5hati+12hatj and B=3hati+4hatj, find vector component of vecA in ...

    Text Solution

    |

  14. If veca=2hati+hatj-hatk and vecb=hati-hatk, then vector projection of ...

    Text Solution

    |

  15. The vector components of a vector vecA=xhati+yhatj along hati+hatj and...

    Text Solution

    |

  16. Which of the following vectors is perpendicular to hati+hatj+hatk ?

    Text Solution

    |

  17. Component of (3hati+4hatj) perpendicular to (hati+hatj) and in the pla...

    Text Solution

    |

  18. Component of (3hati+4hatj) parallel to (hati+hatj) is :

    Text Solution

    |

  19. What is the angle between vecP and the resultant of (vecP+vecQ) and (v...

    Text Solution

    |

  20. If a,b, and c are the unit vectors along the incident ray, reflected r...

    Text Solution

    |