Home
Class 11
PHYSICS
Choose the correct options A body of mas...

Choose the correct options
A body of mass 2 kg, travelling at 4 `m//s` makes a head-on collision with a body of mass 1 kg travelling in the opposite direction with a velocity of 2 `m//s`, the velocities of the two bodies after collision are____
A. v 1 = 6 m / s , v 2 = 6 m / s
B. v 1 = 0 , v 2 = 0
C. v 1 = 0 m / s , v 2 = 6 m / s
D. v 1 = 6 m / s ,v 2 =0`

A

A. `v_1 = 6 m//s`,`v_2 = 6 m//s`

B

B. `v_1 = 0`,`v_2 = 0`

C

C. `v_1= 0 m//s`,`v_2 = 6 m//s`

D

D. `v_1= 6 m//s`,v_2 =0`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    CHETANA PUBLICATION|Exercise EXERCISE|76 Videos
  • MAGNETISM

    CHETANA PUBLICATION|Exercise EXERCISE|118 Videos

Similar Questions

Explore conceptually related problems

A bodyof mass 2 kg moves at speed of 4 m//s and makes head on collision with body of mass 1 kg moving with speed 2 m//s in opposite direction. What is velocity of two bodies after collision?

A body of mass 0.1 kg travelling with a velocity of 5 m/s, collides head-on with another body of mass 0.2 kg travelling in the same direction with a velocity of 1.2 m/s. If the two bodies stick together after collision, their common velocity is

A body of mass 2 kg travels with a velocity of 8 m//s makes a head on collision with another body having mass 4 kg, which is travelling in the same direction with a velocity of 1 m//s . Calculate the velocities of the two bodies after collision. Find the loss in kinetic energy of the system. (Given e = 0.5)

A body P of mass 3 kg and moving with velocity of 2 m//s makes a head-on elastic collision wi9th other body 'Q' of mass 5 kg, which is at rest. What is velocity of Q after collision?

A body of mass 1 kg moving with velocity 5 m/s collides with another body of mass 2 kg moving with velocity 1.5 m/s in opposite direction. If the coefficient of restitution is 0.8, their velocities aftter collision respectively are

A body of mass 1 kg moving with velocity 10 m//s collides with another body moving in opposite direction of mass 3 kg and velocity 3 m//s . After collision both the bodies move together. What is their common velocity?

A body of mass10 kg ismoving in a circle of radius 1 m with an angular velocity of 2 rad/s. The centripetal force is

A body P of mass 3 kg and moving with velocity of 2 m//s makes a head-on elastic collision wi9th other body 'Q' of mass 5 kg, which is at rest. (ii) What is momentum of body P after collision?

A body of mass 2 kg collides with a body of mass 1 kg. Their initial velocities are 6 m/s and 4 m/s respectively. If the velocity of the first body after collision is : (14)/3 m/s , find the velocity of the second body after collision.

Choose the correct options A ball of mass 5 kg travelling with velocity of 15 cm//s makes a head on collision with another ball of mass 1 kg which is at rest. After the collision, the speed of the lighter ball is____ A. zero B. less than 15 c m / s C. equal to 15 c m / s D. greater than 15 c m / s

CHETANA PUBLICATION-LAWS OF MOTION -EXERCISE
  1. Choose the correct options A uniform bar RS weighs 100 g and is 80 cm...

    Text Solution

    |

  2. Choose the correct options A steel bar AB of mass 10 kg and length 1 m...

    Text Solution

    |

  3. Choose the correct options A body of mass 2 kg, travelling at 4 m//s m...

    Text Solution

    |

  4. Choose the correct options A particle of mass moving eastward with a s...

    Text Solution

    |

  5. Choose the correct options The coordinate of centre of mass of a hemi...

    Text Solution

    |

  6. Choose the correct options A block at rest explodes into 3 parts of t...

    Text Solution

    |

  7. Choose the correct options The potential energy V of a system is a fun...

    Text Solution

    |

  8. Select and write the most appropriate answer from the given alternativ...

    Text Solution

    |

  9. Select and write the most appropriate answer from the given alternativ...

    Text Solution

    |

  10. Distinguish between gravitational force and nuclear force

    Text Solution

    |

  11. Define inertial frame of reference. State any one example of inertial ...

    Text Solution

    |

  12. Define and explain moment of force.

    Text Solution

    |

  13. Find the position of a centre of mass of a system consisting of two bo...

    Text Solution

    |

  14. Define coefficient of restitution. State its value in case of an inela...

    Text Solution

    |

  15. The potential energy of a system given by u = frac(K)(r^2). Find the s...

    Text Solution

    |

  16. State the physical quantities that decide the trajectory of motion. Ex...

    Text Solution

    |

  17. Why is the moment of a couple independent of the axis of rotation even...

    Text Solution

    |

  18. State and explain work energy theoram for conservative forces.

    Text Solution

    |

  19. A massless inextensible string with masses 1kg and 4kg attached to its...

    Text Solution

    |

  20. State the expression of final velocity of 2 bodies having a head on el...

    Text Solution

    |