Home
Class 12
PHYSICS
A block of mass 1 kg moving with a speed...

A block of mass `1 kg` moving with a speed of `4 ms^(-1)`, collides with another block of mass `2 kg` which is at rest. The lighter block comes to rest after collision. The loss in `KE` of the system is

A

8 J

B

`4xx10^(-7)J`

C

4 J

D

0 J

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 30

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET SET 32

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

A block of mass 1 kg moving with a speed of 4 ms^(-1) , collides with another block of mass 2 kg which is at rest. If the lighter block comes to rest after collision, then the speed of the heavier body is

A block of mass m moving at speed upsilon collides wilth another block of mass 2 m at rest. The lighter block comes to rest after the collision. Find the coefficient of restitution.

A ball of mass m moving at a speed v collides with another ball of mass 3m at rest. The lighter block comes to rest after collisoin. The coefficient of restitution is

A body of mass 4 kg moving with velocity 12 m//s collides with another body of mass 6 kg at rest. If two bodies stick together after collision , then the loss of kinetic energy of system is

A body of mass 5 kg moving with a velocity 10 m/s collides with another body of the mass 20 kg at, rest and comes to rest. The velocity of the second body due to collision is

A spring-block system is resting on a frictionless floor as shown in the figure. The spring constant is 2.0Nm^(-1) and the mass of the block is 2.0 kg. Ignore the mass of the spring. Initially the spring is in an unstretched condition. Another block of mass 1.0 kg moving with a speed of 2.0ms^(-1) collides elastically with the first block. The collision is such that the 2.0 kg block does not hit the wall. The distance, in metres, between the two blocks when the spring returns to its unstretched position for the first time after the collision is

A spring-block system is resting on a frictionless floor as shown in the figure. The spring constant is 2.0 N m^(–1) and the mass of the block is 2.0 kg. Ignore the mass of the spring. Initially the spring is in an unstretched condition. Another block of mass 1.0 kg moving with a speed of 2.0 m s^(–1) collides elastically with the first block. The collision is such that the 2.0 kg block does not hit the wall. The distance, in metres, between the two blocks when the spring returns to its unstretched position for the first time after the collision is _________.

A moving block having mass m , collides with another stationary block having mass 4m . The lighter block comes to rest after collision. When the initial velocity of the block is v , then the value of coefficient of restitution ( e) will be

A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When the initial velocity of the lighter block is v, then the value of coefficient of restitution (e) will be

NTA MOCK TESTS-NTA NEET SET 31-PHYSICS
  1. Assuming the mass of the earth as 6.64xx10^(24)kg Kg and the average ...

    Text Solution

    |

  2. A block of mass 1 kg moving with a speed of 4 ms^(-1), collides with a...

    Text Solution

    |

  3. A ball of mass m is dropped onto a smooth fixed wedge of inclination t...

    Text Solution

    |

  4. A projectile of mass m is fired with a velocity v from point P at an a...

    Text Solution

    |

  5. The linear velocity of a point on the surface of earth at a latitude o...

    Text Solution

    |

  6. Above curie' s temperature ,

    Text Solution

    |

  7. In a meter bridge the balancing length rom the left end (standard resi...

    Text Solution

    |

  8. Two batteries, one of emf 18V and internal resistance 2Omega and the o...

    Text Solution

    |

  9. A battery has an open circuit potential difference 10 V between the t...

    Text Solution

    |

  10. Which of the following operations will not increase the sensitivity of...

    Text Solution

    |

  11. In the circuit shown below, the key K is closed at t = 0 . The current...

    Text Solution

    |

  12. A non - conducting cylindrical rod is inserted within two coils of ins...

    Text Solution

    |

  13. In a series LCR circuit, the voltages across an inductor, a capacitor ...

    Text Solution

    |

  14. At a point in space, the eletric field points toward north. In the reg...

    Text Solution

    |

  15. Two concentric spheres of radii R and r have similar charges with equa...

    Text Solution

    |

  16. If 20 J of work has to be done to move an electric charge of 4 C f...

    Text Solution

    |

  17. The figure shows two diagrams of the same screw gauge . In the first c...

    Text Solution

    |

  18. If the first one - third of q journey is travelled at 20 km h^(-1) , ...

    Text Solution

    |

  19. A body is orbiting very close to the earth surface kinetic energy K.E....

    Text Solution

    |

  20. A planet radiates heat at a rate proportional to the fourth power of i...

    Text Solution

    |