Home
Class 12
PHYSICS
A bullet of mass 0.02 kg travelling hori...

A bullet of mass 0.02 kg travelling horizontally with velocity 250`ms^(-1)` strikes a block of wood of mass 0.23 kg which rests on a rough horizontal surface. After the impact, the block and bullet move together and come to rest after travelling a distance of 40m. The coefficient of sliding friction of the rough surface is `( g = 9.8 ms^(_2))`

A

0.75

B

0.61

C

0.51

D

`0.30`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • NEET MOCK TEST 1

    NTA MOCK TESTS|Exercise PHYSICS - SINGLE CHOICE|45 Videos

  • NEET MOCK TEST 11

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

A bullet of mass 10 g travelling horizontally with a velocity of 300 m/s strikes a block of wood of mass 290 g which rests on a rough horizontal floor. After impact the block and the bullet move together and come to rest when the block has travelled a distance of 15 m. The coefficient of friction between the block and the floor will be - (Duration of impact is very short)

A body is moving along a rough horizontal surface with an initial velocity 6m/s m If the body comes to rest after travelling 9 m , then the coefficient of sliding friction will be

A bullet of mass 50 g moving horizontally with a velocity 210 ms^(-1) gets embedded in a block of mass 1 kg kept on a rough horizontal surface. If the coefficient of kinetic friction between the block and surface is 0.5. The block- bullet system will move a distance of "______" before coming to res t(Acceleration due to gravity =10 ms^(-2)).

A bullet of mass m travelling horizontally with speed u strikes a wooden block of mass 'M' placed on a smooth horizontal plane. The penetration is assumed uniform and the bullet comes to rest after penetrating a distance 'd' into the block. Then choose the correct statement :

A 30kg block rests on a rough horizontal surface A force of 200N is applied on the block The block acquires a speed of 4m//s starting from rest in 2s What is the value of coefficient of friction ? .

A block slides with a velocity of 10 m/s on a rough horizontal surface. It comes to rest after covering a distance of 50 metre. If g is 10m//s^(2) , then the coefficient of dynamic friction between the block and the surface is

The 4 kg sphere form rest when theta = 60^(@) strikes a block mass of 5 kg placed on a rough horizontal plane and comes to rest after collision. The 5 kg block comes to rest after moving a distance of 0.8m . Find mu of ground & block & coefficient of restituation e.

A block moving on a horizontal surface with velocity 20 ms^(-1) comes to rest because of surface friction over a distance of 40 m. Taking g = 10 ms^(-2) , the coefficient of dynamic friction is :

A bullet of mass 10g travelling horizontally with a velocity of 150 ms^(-1) strikes a stationary wooden block and come to rest in 0.03 s . Calculate the distance of penetration of the bullet into the block. Also, Calculate the magnitude of the force exerted by the wooden block on the bullet,

NTA MOCK TESTS-NEET MOCK TEST 10-PHYSICS
  1. it is estimated that per minute, each cm^2 of earth recives about 2 ca...

    Text Solution

    |

  2. The potential energy of a particle under a conservative force is given...

    Text Solution

    |

  3. A bullet of mass 0.02 kg travelling horizontally with velocity 250ms^(...

    Text Solution

    |

  4. A skater of mass m standing on ice throws a stone of mass M =2m with a...

    Text Solution

    |

  5. A ball of mass m = 0.5 kg is attached to the end of a string having l...

    Text Solution

    |

  6. The distance of Neptune and Saturn from the Sun are respectively 10^(1...

    Text Solution

    |

  7. If a man goes from the surface of Earth to a height equal to the radiu...

    Text Solution

    |

  8. A particle starts oscillating simple harmonically from its equilibrium...

    Text Solution

    |

  9. The phase difference between two waves represented by y(1)=10 ^(...

    Text Solution

    |

  10. What will be the change in interatomic distance ( in Å ) of steel on a...

    Text Solution

    |

  11. An incompressible liquid flows through a horizontal tube as shown in t...

    Text Solution

    |

  12. Two blocks of masses 10 kg and 30 kg are placed along a vertical line...

    Text Solution

    |

  13. If a given point P is in contact with ground initially and wheel of ra...

    Text Solution

    |

  14. How many different wavelength may be observed in the spectrum from a h...

    Text Solution

    |

  15. 1 amu ( atomic mass unit ) mass is equal to energy of

    Text Solution

    |

  16. To measure the resistance of a galvanometer by half deflection method,...

    Text Solution

    |

  17. Cadmium and Broron rods are used in a nuclear reactor to

    Text Solution

    |

  18. Calculate the number of photons emitted per second by a 10 watt sodium...

    Text Solution

    |

  19. A proton when accelerated through a potential difference of V volt has...

    Text Solution

    |

  20. Find the potential difference between A and B as shown in the figure

    Text Solution

    |