Home
Class 11
PHYSICS
Find: (i) "north cross west" " " (ii...

Find:
(i) "north cross west" `" "` (ii) "down dot south"
(iii) "west dot west" (iv) "south cross south".
Let each vector have unit magnitude.

Text Solution

Verified by Experts

The correct Answer is:
(i) up (ii) 0 (iii) 1 (iv) `vec(0)`
Promotional Banner

Topper's Solved these Questions

  • MISCELLANEOUS

    ALLEN |Exercise Exersice-4[B]|14 Videos

  • MISCELLANEOUS

    ALLEN |Exercise EXERCISE-5(A)|15 Videos

  • MISCELLANEOUS

    ALLEN |Exercise DATA SUFFICIENCY QUESTIONS|3 Videos

  • KINEMATICS (MOTION ALONG A STRAIGHT LINE AND MOTION IN A PLANE)

    ALLEN |Exercise BEGINNER S BOX-7|8 Videos

  • PHYSICAL WORLD, UNITS AND DIMENSIONS & ERRORS IN MEASUREMENT

    ALLEN |Exercise EXERCISE-IV|7 Videos

Similar Questions

Explore conceptually related problems

A uniform magnetic field of 1.5 T exists in a cylindrical region of radius10.0 cm, its direction parallel to the axis along east to west. A wire carrying current of 7.0 A in the north to south direction passes through this region. What is the magnitude and direction of the force on the wire if, (a) the wire intersects the axis, (b) the wire is turned from N-S to northeast-northwest direction, (c) the wire in the N-S direction is lowered from the axis by a distance of 6.0 cm?

Answer the following : (i) A vector has magnitude & direction. Does it have a fixed location in space? Can it vary with time. (ii) Will two equal vectors vec(a) & vec(b) at different locations in space necessarily have identical physical effects? (iii) Can three non zero vectors, not in one plane, give a zero resulatnt? Can four vectors do ? (iv) Can a vector have zero magnitude if one of its components is not zero?

A man rows a boat with a speed of 18 km/hr in northwest direction. The shoeline makes an angle of 15^(@) south of west. Obtain the component of the velocity of the boat along the shoreline:

A bird files due north at velocity 20 ms^(-1) for 15s it rests for 5s and then files due south at velocity 24 ms^(-1) for 10s. For the whole trip find the average speed and magnitude of average velocity

The ends of a long bar are maintained at different temperatures and there is no loss of heat from the sides of the bar due to conduction or radiation. The graph of temperature against distance of the bar when it has attained steady state is shown here. The graph shows ltimg src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/ALN_PHY_R03_E09_009_Q01.png" width="80%"gt (i) the temperature gradient is not uniform. (ii) the bar has uniform cross-sectional area. (iii) the cross-sectional area of the bar increases as the distance from the hot end increases. (iv) the cross-sectional area of the bar decreases as the distance from the hot end increases

A man covered following displacements. Find the net displacement of the person (i) 25m west (ii) 20 m 30^(@) east of south (iii) 5sqrt(3)m south (iv) 10 m east (v) 10 m 60^(@) north of west

Speed of water in river is 5 m/min from west to east. A man can swim with 10 m/min in river water. At what angle should the man swim such that it can reach towards south with shortest path ?

A vector of magnitude 10m in the direction 37^(@) south of west has its initial point at (5m,2m). If positive x-axis represents the east and positively y-axis the north, the coordinates of its terminal point are

An electron travelling west to east enters a chamber having a uniform electrostatic field in north to south direction. Specify the direction in which a uniform magnetic field should be set up to prevent the electron from deflecting from its straight line path.

A long straight horizontal cable carries a current of 2.5 A in the direction 10^@ south of west to 10^@ north of east. The magnetie meridian of the place happens to be 10^@ west of the geographie meridian. The earth's magnetic field at the location is 0.33 G, and the angle of dip is zero. Locate the line of neutral points (ignore the thickness of the cable)? (At neutral potnts, magnetic field due to a current-carying cable is equal and opposite to the horizontal component of earth's magnetic field.)

ALLEN -MISCELLANEOUS-Exercise-04 [A]
  1. The position vector of car w.r.t. its starting point is given as vecr=...

    Text Solution

    |

  2. Answer the following : (i) A vector has magnitude & direction. Does ...

    Text Solution

    |

  3. A room has dimensions 3 m xx 4 m xx5 m. A fly starting at one cronet e...

    Text Solution

    |

  4. Vector vec(a) has components a(x)=3, a(y)=4. Find the components of a ...

    Text Solution

    |

  5. Find: (i) "north cross west" " " (ii) "down dot south" (iii) "we...

    Text Solution

    |

  6. The position vector of a particle of mass m= 6kg is given as vec(r)=[(...

    Text Solution

    |

  7. A plane body has perpendicular axes OX and OY marked on it and is acte...

    Text Solution

    |

  8. State with reasons, whether the following algebraic operations with sc...

    Text Solution

    |

  9. A car travels due east on a level road for 30 km. It then turns due no...

    Text Solution

    |

  10. Write the vector representation of the vectors A and B with respect to...

    Text Solution

    |

  11. Find the kinetic energy of a particle of mass 200 g moving with veloci...

    Text Solution

    |

  12. Acceleration of particle moving in straight line can be written as a=(...

    Text Solution

    |

  13. The position vector of an object moving in X-Z plane is vec(r)=v(0)tha...

    Text Solution

    |

  14. The position of a particle at time t is given by the relation x(t)=((V...

    Text Solution

    |

  15. The related equations are : Q=mc(T(2)-T(1)), l(1)=l(0)[1+alpha(T(2)-T(...

    Text Solution

    |

  16. A particle of mass m is in a uni-directional potential field where the...

    Text Solution

    |

  17. Assume that the largest stone of mass 'm' that can be moved by a flowi...

    Text Solution

    |

  18. A projectile fired at an angle of 45^(@) travels a total distance R, c...

    Text Solution

    |

  19. In the formula P=(nRT)/(V-b)e^(-a/(RTV)). Find the dimensions of a and...

    Text Solution

    |

  20. If instead of mass, length and time as fundamental quantities we choos...

    Text Solution

    |