Home
Class 12
PHYSICS
A point mass is moving in the x-y plane....

A point mass is moving in the x-y plane. Its acceleration is a constant vector perpendicular to the x-axis. Which of the following do/does not charge with time ?

A

only y-component of its velocity vector

B

only x-component of its velocity vector

C

only y-component of its acceleration vector

D

only x-component of its acceleration vector

Text Solution

Verified by Experts

The correct Answer is:
B, C, D
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS-2D

    ALLEN |Exercise Exercise (O-1)|40 Videos

  • GRAVITATION

    ALLEN |Exercise EXERCISE 4|9 Videos

  • MOTION IN A PALNE

    ALLEN |Exercise SOLVED EXAMPLE|28 Videos

Similar Questions

Explore conceptually related problems

If x, v and a denote the displacement, the velocity and the acceleration of a particle executing simple harmonic motion of time period T, then, which of the following does not change with time?

A particle moves so th at its p o sitio n vector is omega Where is a constant which of the following is true

A point is on the X-axis. What are its y coordinate and z coordinates ?

An object is moving in x-y plane its velocity and acceleration at t=0 are represented in figure. The ratio of magnitude of velocity to magnitude of component of acceleration along velocity at t=0 :-

An object is moving in x-y plane its velocity and acceleration at t=0 are represented in figure. After how much time object crosses the y- axis:-

(a) Prove the theorem of perpendicular axes. (Hint : Square of the distance of a point (x, y) in the x-y plane from an axis through the origin perpendicular to the plane is x^(2)+y^(2) ). (b) Prove the theorem of parallel axes. (Hint : If the centre of mass is chosen to be the origin Sigmam_(1)(r_(i)=0) .

A particle moves in the xy plane with a constant acceleration 'g' in the negative-direction. Its equation of motion is y = ax-bx^(2) , where a and b are constants. Which of the following are correct?

A particle moves in the x-y plane according to the law x=at, y=at (1-alpha t) where a and alpha are positive constants and t is time. Find the velocity and acceleration vector. The moment t_(0) at which the velocity vector forms angle of 90^(@) with acceleration vector.

A point mass moves along a circle of radius R with a constant angular acceleration alpha . How much time is needed after motion begins for the radial acceleration of the point mass to be equal to its tangential acceleration ?

A car starting from position of rest, moves with constant acceleration x. Then it moves with constant deceleration y and become stationary. If the total time elapsed during this is t, then the total distance travelled by car in time t is

ALLEN -KINEMATICS-2D-Exercise (O-2)
  1. A projectile of mass 1kg is projected with a velocity of sqrt(20)m//s ...

    Text Solution

    |

  2. A particle is moving with a position vector, vec(r)=[a(0) sin (2pi t) ...

    Text Solution

    |

  3. A point mass is moving in the x-y plane. Its acceleration is a constan...

    Text Solution

    |

  4. A ball is thrown from ground such that it just crosses two poles of eq...

    Text Solution

    |

  5. Position vector of a particle is expressed as function of time by equa...

    Text Solution

    |

  6. A projectile is thrown with speed u into air from a point on the horiz...

    Text Solution

    |

  7. A block is thrown with a velocity of 2m//s^(-1) (relative to ground) o...

    Text Solution

    |

  8. A man on a rectilinearly moving cart, facing the direction of motion, ...

    Text Solution

    |

  9. A cubical box dimension L = 5//4 m starts moving with an acceleration ...

    Text Solution

    |

  10. A large rectangular box moves vertically downward with an acceleration...

    Text Solution

    |

  11. In the figure there is a long horizontal bridge over a river 75 m high...

    Text Solution

    |

  12. In the figure there is a long horizontal bridge over a river 75 m high...

    Text Solution

    |

  13. In the figure there is a long horizontal bridge over a river 75 m high...

    Text Solution

    |

  14. From the ground level, a ball is to be shot with a certain speed. Grap...

    Text Solution

    |

  15. From the group level, a ball is to be shot with a certain speed. Graph...

    Text Solution

    |

  16. Match the following A particle is projected with initial speed u-...

    Text Solution

    |

  17. Match the following A particle is projected from a large fixed in...

    Text Solution

    |

  18. Match the following In groung to ground projection a particle is ...

    Text Solution

    |

  19. A small ball is prjected along the surface of a smooth inclined plane ...

    Text Solution

    |

  20. Match the following

    Text Solution

    |