Home
Class 11
PHYSICS
A mass m moving horizontal (along the x-...

A mass `m` moving horizontal (along the x-axis) with velocity `v` collides and stricks to mass of `3m` moving vertically upward (along the y-axis) with velocity `2v`. The final velocity of the combination is

A

`3/2 v hat i + 1/4 v hat j`

B

`1/4 v hat i + 3/4 v hat j`

C

`1/3 v hat i + 2/3 v hat j`

D

`2/3 v hat i + 1/3 v hat j`

Text Solution

Verified by Experts

The correct Answer is:
`(2)`

`Mv hat i + 3M(V)hat j = (M + 3M)vec v`
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -III|54 Videos
  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE IV|43 Videos
  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -II (C.W)|75 Videos
  • WAVES

    NARAYNA|Exercise Exercise-IV|56 Videos
  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level-VI (Integer)|12 Videos

Similar Questions

Explore conceptually related problems

A body A of mass 5kg is moving along the x-axis with a velocity 2m/s. Another body (B) of mass 10 kg is moving along the y-axis with a velocity sqrt(3)m//s . They collide at the origin and stick together. What is the final velocity of the combined mass?

A ball of mass m moving with velocity v collides elastically with another ball of identical mass coming from the opposite direction with velocity 2v. Their velocities after collisions are-

Particle A of mass m_A=m/2 moving along the x - axis with velocity v_0 collides elastically with another particle B at rest having mass m_B=m/3 . If both particles move along the x - axis after the collision , the change Deltalamda in de - Broglie wavelength of particle A , in terms of its de - Broglie wavelength (lamda_0) before collision is :

A ball of mass m moving with velocity v collides head on elastically with another identical ball moving with velocity - V. After collision

A particle of mass m moving with speed v in position x - direction collides perfectly inelastically with another identical particle moving with same speed in positive y - direction . Find final velocity of the combination.

A disc of mass m and radius R lies flat on a smooth horizontal table. A particle of mass m, moving horizontally along the table, strikes the disc with velocity V while moving along a line at a distance (R)/(2) from the centre. Find the angular velocity acquired by the disc if the particle comes to rest after the impact.

A ball of mass in m= 1 kg is hung vertically by a thread of length l = 1.50 m . Upper end of the thread is attached to the ceiling of a trolley of mass M= 4 kg . Initially, the trolley is stationary and it is free to move along horizontal rails without friction. A shell of mass m=1 kg, moving horizontally with velocity v_(0) = 6 m//s collides with the ball and gets stuck with it. As a result, the thread starts to deflect towards right. The velocity of the combined body just after collision is

A ball of mass M moving with a velocity v collides perfectly inelastically with another ball of same mass but moving with a velocity v in the opposite direction. After collision

A body of mass 20 kg is moving with a velocity of 2v and another body of mass 10 kg is moving with velocity V along same direction. The velocity of their centre of mass is

NARAYNA-WORK , ENERGY & POWER -EXERCISE -II (H.W)
  1. The human heart discharges 75 cm^(3) of blood per beat against an aver...

    Text Solution

    |

  2. A point size mass 100 gm is rotated in a vertical circle using a cord ...

    Text Solution

    |

  3. A vehicle is travelling along concave road then along convex road of s...

    Text Solution

    |

  4. The length of a simple pendulum is 1 m. The bob is given a velocity 7 ...

    Text Solution

    |

  5. Two balls marked 1 and 2 of the same mass m and a third ball marked 3 ...

    Text Solution

    |

  6. A particle of mass m moving eastward with a velocity V collides with a...

    Text Solution

    |

  7. A 10 gm bullet is fired from a rifle horizontally into a 5 kg block of...

    Text Solution

    |

  8. Three identical particles with velocities v0hati, -3v0hatj and 5v0hatk...

    Text Solution

    |

  9. From the top of a tower of height 100 m a 10 gm block is dropped freel...

    Text Solution

    |

  10. A steel ball of radius 2 cm is initially at rest. It is struck head on...

    Text Solution

    |

  11. A canon shell fired breaks into two equal parts at its highest point. ...

    Text Solution

    |

  12. A mass of 2.9 kg is suspended from a string of length 50 cm and is at ...

    Text Solution

    |

  13. In a smooth circular tube of radius R , a particle of mass m moving wi...

    Text Solution

    |

  14. A mass ‘m’ moves with a velocity ‘v’ and collides inelastically with a...

    Text Solution

    |

  15. In the figure, pendulum bob on left side is pulled a side to a height ...

    Text Solution

    |

  16. A body oa mass M at rest explodes into three pieces, two of which of m...

    Text Solution

    |

  17. A mass m moving horizontal (along the x-axis) with velocity v collides...

    Text Solution

    |

  18. During "elastic collision" a) there is no loss of kinetic energy b...

    Text Solution

    |

  19. Identify the correct statements from the following a) the collisions...

    Text Solution

    |

  20. A ball hits a floor and rebounds after an inelastic collision. In this...

    Text Solution

    |