Home
Class 11
PHYSICS
A railway coach of mass 8000 kg moving w...

A railway coach of mass 8000 kg moving with speed of `54 ms^(-1)` collide with rest coach of same like . Find the decrease in kinetic energy in this process.

Text Solution

Verified by Experts

Hint use of the formula of : decreases in kinetic energy = `(m_(1)m_(2)v_(li))/(2(m_(1)+m_(2))`
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - B Numericals (Numerical From Textual Exercise)|42 Videos

  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - B Numericals (Numerical From .DARPAN. Based On Textbook)|15 Videos

  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - A Questions - Answers (Try Yourself (VSQs))|74 Videos

  • WAVES

    KUMAR PRAKASHAN|Exercise SECTION-F (Questions From Module) (Sample questions for preparation of competitive exams)|23 Videos

Similar Questions

Explore conceptually related problems

A sphere of mass 50 g moving with velocity of 10m/s collide with the rest block at mass 950 g and embeded . The kinetic energy lost by sphere will be …….

A car and a truck are moving with the same speed of 12ms^(-1) . If their masses are in the ratio 1:5 , find the ratio of their kinetic energy.

A car having mass 1000 kg is moving with speed of 36kmh^(-1) . Calculate its momentum and kinetic energy. (Verify the value of kinetic energy using E_(k)=p^(2)//2m . 'p' is momentum, how kinetic energy is equal E_(k)=p^(2)//2m ? Think)

An object of mass 100g moves with speed 1ms^(-1) . Its kinetic energy would be ………..J.

A ball of mass 2kg moving with speed 5m/s collides directly with another ball of mass 3kg moving in the same direction with speed 4m/s. The coefficient os restitution is 2/3. Find the velocities of both ball after the collision.

A block of mass 5 kg moves from left to right with a velocity of 2ms^(-1) and collides with another block of mass 3 kg moving along the same line in the opposite direction with velocity 4 ms^(-1) . (i) If the collision is perfectly elastic, determine velocities of both the blocks after their collision. (ii) If coefficient of restitution is 0.6, determine velocities of both the blocks after their collision.

Two billiard balls each of mass 0 .05 kg moving in opposite directions with speed 6 ms^(-1) collide and rebound with the same speed What is the impulse imparted to each ball due to the other ?

KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - B Numericals (Numerical From Textual Illustration)
  1. Examine Tables 61. -6.3 and express (a) the energy required to break o...

    Text Solution

    |

  2. An elevator can carry a maximum load of 1800 kg (elevator +passengers ...

    Text Solution

    |

  3. In a nuclear reactor a neutron of high speed (typically 10^(7) ms^(-1)...

    Text Solution

    |

  4. Consider the collision depicted in figure to be between two billiard b...

    Text Solution

    |

  5. Find the angle between vec(P) = - 2hat(i) +3 hat(j) +hat(k) and vec(Q...

    Text Solution

    |

  6. If the angle between vec(A) = 2hat(i)+4hat(j)+2hat(k) and vec(B) =2hat...

    Text Solution

    |

  7. It is well known that a raindrop falls under the influence of the down...

    Text Solution

    |

  8. A cyclist comes to a skidding stop in 10 m . During this process , the...

    Text Solution

    |

  9. In a ballistics demonstration a police officer fires a bullet of mass ...

    Text Solution

    |

  10. A woman pushes a trunk on a railway platform which has a rough surface...

    Text Solution

    |

  11. A block of mass m = 1 kg , moving on a horizontal surface with speed v...

    Text Solution

    |

  12. To stimulate car accident , auto manufacturers study the collision of ...

    Text Solution

    |

  13. As shown in fig. a block of mass m = 0.40 kg is moving on a frictionle...

    Text Solution

    |

  14. A spring of spring constant 500 N/m is attached on a rough surface at...

    Text Solution

    |

  15. Express incident average solar energy of 5xx10^(24) J on earth in eV ...

    Text Solution

    |

  16. Work done by one heartbeat of human is 0.5 J , then express it in eV .

    Text Solution

    |

  17. Energy released by th explosion of supernova is 10^(44) J , then expre...

    Text Solution

    |

  18. The elevator can carry a maximum load of 2800 kg (elevator +passengers...

    Text Solution

    |

  19. A railway coach of mass 8000 kg moving with speed of 54 ms^(-1) colli...

    Text Solution

    |

  20. Consider the collision depicted in gif . To be between two billiard ba...

    Text Solution

    |