Home
Class 11
PHYSICS
Two bodies of masses 3 kg and 2 kg colli...

Two bodies of masses 3 kg and 2 kg collide head-on. Their relative velocities before and after collision are 15 m/s and 5 m/s respectively. The loss of kinetic energy of the system is

A

120 J

B

100 J

C

80 J

D

240 J

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Gravitation

    TARGET PUBLICATION|Exercise Exercise|273 Videos
  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    TARGET PUBLICATION|Exercise Evaluation Test|12 Videos

Similar Questions

Explore conceptually related problems

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.

If velocities of 3 molecules are 5 m/s, 6m/s and 7 m/s respectively, then their mean square velocity in m^2/s^2 is

The velocities of 4 molecules are 2 m//s , 4 m//s , 5 m//s and 6 m//s respectively. What is their mean square velocity?

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)

Two bodies of masses m_(1) and m_(2) have same kinetic energy. The ratio of their momentum is

The mean square velocity of the five molecules of velocities are 2 m/s, 3 m/s, 4 m/s, 5 m/s and 6 m/s respectively is

2 balls have masses of 50 gm and 100 gm and they are moving along the same line in the same direction with velocities of 3m/s and 1.5 m/s respectively. They collide with each other and after the collision, the first ball moves with a velocity of 2.5 m/s. Calculate the velocity of the other ball after collision.

Solve the following examples: (numerical problems) A body of mass 1 kg, moving with a velocity of 4 m/s collides with a body of mass 0.5 kg moving with a velocity of 2 m/s . If the velocity of the first body after collision is 8/3 m/s , find the velocity of the second body after collision.

Two bodies of masses m and 2m, moving with initial velocities 50 m//s in the + x direction and 40 m//s in the -x direction respectively, undergo a head -on elastic collision. (i) Calculate their final velocities (ii) What is the ratio of the final to initial kinetic energies for the body of mass m? (iii) Calculate the change in momentum of each body if m= 1kg (iv) What is the change in the momentum of the system?

2 balls have masses of 50 gm and 100 gm respectively and they are moving along the same line in the same direction with velocities of 3 m/s and 1.5 m/s respectively. They collide with each other and after the collision, the first ball moves with a velocity of 2.5 m/s. Calculate the velocity of the other ball after collision.

TARGET PUBLICATION-LAWS OF MOTION-EXERCISE
  1. A 1 kg ball moving with a speed of 6" ms"^(-1) collides head - on with...

    Text Solution

    |

  2. A particle of mass m moving in the x direction with speed 2v is hit by...

    Text Solution

    |

  3. Two bodies of masses 3 kg and 2 kg collide head-on. Their relative vel...

    Text Solution

    |

  4. Choose the correct options A block of mass m moving at a speed of u c...

    Text Solution

    |

  5. The force 'F' acting on a particle of mass 'm' is indicated by the for...

    Text Solution

    |

  6. The position-time (x - t) graph of a moving body of mass 2 kg is shown...

    Text Solution

    |

  7. A rod of weight W is supported by two parallel knife edges A and B and...

    Text Solution

    |

  8. Which of the points is likely position of the centre of mass of the sy...

    Text Solution

    |

  9. Two bodies of masses m(1) and m(2) are separated by a distance R. The ...

    Text Solution

    |

  10. Three identical spheres each of mass 1 kg are placed touching one anot...

    Text Solution

    |

  11. A system of two particles is having masses m(1) and m(2). If the parti...

    Text Solution

    |

  12. The centre of mass of a system of three particles of masses 1 g, 2 g a...

    Text Solution

    |

  13. Three particles of the same mass lie in the x-y plane. The (x, y) coor...

    Text Solution

    |

  14. A loaded gun of mass M fires a bullet of mass m with a velocity v at a...

    Text Solution

    |

  15. A large number of particles are placed around the origin, each at a di...

    Text Solution

    |

  16. Distance of the centre of mass of a solid uniform cone from its vertex...

    Text Solution

    |

  17. The centr of mass of a right circular coneof height h, radius R and co...

    Text Solution

    |

  18. Four particles A, B, C and D with masses mA = m, mB = 2m, mc = 3m and ...

    Text Solution

    |

  19. Which of following statements are correct ? ltbgt (a) Centre of mass ...

    Text Solution

    |

  20. n small balls, each of mass m, impinge elastically each second on a su...

    Text Solution

    |