Home
Class 11
PHYSICS
If vx, and vy, are the magnitudes of com...

If `v_x`, and `v_y`, are the magnitudes of component of instantaneous velocity along X and Y axes, then

A

`vec v= v_x hat i + v_y hat j`

B

`vec v= v_x hat i + v_y hat k`

C

`vec v= sqrt(v_x^2 - v_y ^2)`

D

`vec v= sqrt(v_y^2 + v_z ^2)`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

  • OPTICS

    TARGET PUBLICATION|Exercise EXERCISE|447 Videos

Similar Questions

Explore conceptually related problems

The component of a vector r along X-axis will have maximum value if

The horizontal distance x and the vertical height y of a projectile at a time t are given by x=at and y=bt^2 +ct where a, b and c are constants The magnitude of the velocity of the projectile 1 second after it is fired is

If the magnitude of intensity of electric field at a distance x on axial line and at a distance y on equatorial line on a given dipole are equal, then x:y is

Give formula: Final velocity (v) =

In dimension of circal velocity v_(0) liquid following through a take are expressed as (eta^(x) rho^(y) r^(z)) where eta, rhoand r are the coefficient of viscosity of liquid density of liquid and radius of the tube respectively then the value of x,y and z are given by

Derive the formula for critical velocity (V).

The x and y components of vectors vec(A) are 4 m and 6 m respectively. The x and y components of vector (vec(A) +vec(B)) are 12 m and 10 m respectively. Then what are the x and y component . of vector vec(B) ?

A particle is moving with a constant speed 'v' in a circle what is the magnitude of average velocity after half rotation ?

In case of a simple harmonic motion, if the velocity is plotted along the X-axis and the displacement (from the equilibrium position) is plotted along the Y-axis, the resultant curve happens to be an ellipse with ratio: ("major axis(along X)")/("major axis (along Y)")=20pi What is the frequency of the simple harmonic motion ?

Particle A moves along X-axis with a uniform velocity of magnitude 10 m/s. Particle B moves with uniform velocity 20 m/s. along a direction making an angle of 60^(@) with the positive direction of X-axis as shwon in the figure. The relative velocity of B with respect to that of A is

TARGET PUBLICATION-Motion in a plane-Exercise
  1. A train A which is 120 m long is running with velocity 20 m/s while tr...

    Text Solution

    |

  2. A 150 m long trains travelling from east to west at a speed of 20 m/s....

    Text Solution

    |

  3. If vx, and vy, are the magnitudes of component of instantaneous veloci...

    Text Solution

    |

  4. Position of a particle at any instant t is given by vec r=3t hat i + 2...

    Text Solution

    |

  5. A particle starts from the origin with velocity vec u= (2hat i - 4 ha...

    Text Solution

    |

  6. A boat is moving with velocity of 3 hat i+ 4hat j in river and water i...

    Text Solution

    |

  7. A train is moving towards cast and a car is moving along north, both w...

    Text Solution

    |

  8. The speed of boat is 5 km/hr in still water. It crosses a river of wid...

    Text Solution

    |

  9. A particle is moving with velocity 5 m/s towards east and its velocity...

    Text Solution

    |

  10. A scooter going towards east at 10 m s^-1 turns right through an angle...

    Text Solution

    |

  11. A river is flowing from west to eat at a speed of 4 m/min. In what dir...

    Text Solution

    |

  12. A river is flowing from W to E with a speed of 5 m/min. A man can swim...

    Text Solution

    |

  13. In a projectile motion, the velocity vector of the projectile is

    Text Solution

    |

  14. Two bullets are fired simultaneously horizontally and with different s...

    Text Solution

    |

  15. At the highest point of the path of a projectile,

    Text Solution

    |

  16. The velocity at the highest point of a projectile proiected 60^@ or w...

    Text Solution

    |

  17. A bomber plane moves horizontally with a speed of 500 m/s and a bomb r...

    Text Solution

    |

  18. The equation of motion of a projectile are given by x= 36 t metre and...

    Text Solution

    |

  19. A body thrown with an initial speed of 96 ft/s reaches the ground aft...

    Text Solution

    |

  20. A bomb is fired from a cannon with a velocity of 1000 m/s making an an...

    Text Solution

    |