Home
Class 12
PHYSICS
Three blocks of masses 4 kg, 2 kg and 1 ...

Three blocks of masses 4 kg, 2 kg and 1 kg respectively are in contact on a frictionless table as shown in the figure. If a force of `14N` is applied on the 4 kg block, the contact force between the 4 kg and the 2 kg block will be

A

`2N`

B

`6N`

C

`8N`

D

`14N`

Text Solution

Verified by Experts

The correct Answer is:
B

We know that `F=ma`

`a=F/m=14/17=2ms^(-2)`
Hence from the figure
`14-N=4a`
`14-N=8impliesN=6N`
Promotional Banner

Topper's Solved these Questions

  • PRACTICE SET 12

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Paper 1 (Physics & Chemistry)|50 Videos
  • PRACTICE SET 14

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Paper 1 (Physics & Chemistry)|50 Videos

Similar Questions

Explore conceptually related problems

Three blocks A , B and C of masses 4kg , 2kg and 1kg respectively are in contact on a frictionless surface, as shown. If a force of 14N is applied on the 4kg block, then the contact force between A and B is.

The metal blocks A and B of masses 2 kg and 1 kg , respectively are in contact on a frictionless table A constant horizontal force of 3 N is applied to the block A . Calculate the force of constant between the two blocks . If the same force is applied to the block B then what will be the force of contact ? Can you explain the difference ?

Find the contact force between the 3kg and 3kg block as shown in figure.

Find the contact force on the 1 kg block.

Find the nomral force between 2 kg and 3 kg blocks.

Three blocks of masses 2kg,3kg and 5kg are placed in contact as shown in the diagram. A horizontal force of 30N is applied on 2kg block. Find the contact force between (a) 2kg and 3kg block and (b) 3kg and 5kg block.

Two blocks of 2 kg and I kg are in contact on a frictionless table. If a force of 3 N is applied on 2 kg block, then the force of contact between the two blocks will be

Three blocks of masses 3kg ,2kg and 1kg are placed side by side on a smooth surface as shown in figure. A horizontal force of 12N is applied on 3kg block. Find the net force on 2kg block.

Find out the contact force between the 2kg & 4 kg block as shown in figure.

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-PRACTICE SET 13-PAPER I OBJECTIVE TYPE
  1. The displacement y of a particle executing periodic motion is given by...

    Text Solution

    |

  2. Change in frequency due to Doppler's effect is produced when

    Text Solution

    |

  3. Three blocks of masses 4 kg, 2 kg and 1 kg respectively are in contact...

    Text Solution

    |

  4. The equation of the stationary wave is y = 2 A sin (( 2 pi c t)/( la...

    Text Solution

    |

  5. A moving coil galvanometer has 10 turns each of length 12 cm and bre...

    Text Solution

    |

  6. A moving coil galvanometer gives full scale defection when a current o...

    Text Solution

    |

  7. A balloon contains 500m^(3) of He at 27^(@)C and 1 atm pressure. Then ...

    Text Solution

    |

  8. A body cools from 50^@C to 49^@C in 5 s. How long will it take to cool...

    Text Solution

    |

  9. What is the torque of a force 3hati+7hatj+4hatk about the origin if th...

    Text Solution

    |

  10. On increasing the plate separation of a charged condenser, the energy

    Text Solution

    |

  11. Two waves having intensities in the ratio of 16:1 produce interference...

    Text Solution

    |

  12. A man standing on a road has to hold his umbrella at 30^0 with the ver...

    Text Solution

    |

  13. A capacitor having capacity of 2 muF is charged to 200 V and then the ...

    Text Solution

    |

  14. The compressibility of water is 4.5xx10^(-10)m^(2)//N. 1 L of water is...

    Text Solution

    |

  15. A charge q is located at the centre of a cube. The electric flux throu...

    Text Solution

    |

  16. A soap film in formed on a frame of area 4xx10^(-3)m^(2). If the area ...

    Text Solution

    |

  17. The maximum electron density in the ionospherein the mornong is 10^(10...

    Text Solution

    |

  18. If the difference between the frequencies of two sound notes is 8Hz, t...

    Text Solution

    |

  19. The length of a sonometer wire between two fixed ends is 110cm. Where ...

    Text Solution

    |

  20. The magnetic susceptibility of a paramagnetic substance at - 173 .^(...

    Text Solution

    |