Home
Class 12
PHYSICS
A block of 5 kg is resting on a friction...

A block of 5 kg is resting on a frictionaless plane. It is struck by a jet releasing water at a rate of `3kgs^(-1)` at a speed of `4ms^(-1)` . Calculate the acceleration of the block.

A

`2.5m//s^(2)`

B

`5m//s^(2)`

C

`10m//s^(2)`

D

`5m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A

`F=(delm)/(delt)xx5`
`1=1kg//sxx5`
`therefore a=(5)/(2)=2.5 m//s^(2)`
Promotional Banner

Topper's Solved these Questions

  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-III|28 Videos
  • NEWTONS LAWS OF MOTION

    ALLEN|Exercise EXERCISE-I|52 Videos
  • NEWTON'S LAWS OF MOTION & FRICTION

    ALLEN|Exercise EXERCISE (JA)|4 Videos
  • RACE

    ALLEN|Exercise Basic Maths (Wave Motion & Dopplers Effect) (Stationary waves & doppler effect, beats)|24 Videos

Similar Questions

Explore conceptually related problems

A block of metal weighing 2kg is resting on a frictionless plane . It is struck by a jet of releasing water at the rate of 1 kg s^(-1) and at a speed of 5ms^(-1) Calculate the intial acceleration of the blocks .

The maximum acceleration of 5 of kg block is :-

A block of mass 5 kg is at rest on a smooth horizontal surface. Water coming out of a pipe horizontally at the rate of 2 kg s^(-1) , hits the block with a velocity of 6ms^(-1) .The initial acceleration of the block is,

40 kg of water flows out of a tap at uniform speed of 5 ms^(-1) . Calculate the amount of energy possessed by the water.

A block resting on a smooth inclined plane is acted upon by a force F as shown. If mass of block is 2 kg and F = 20 N and sin37^(@)=3//5, the acceleration of block is

A wooden block of mass 0*8 kg is dragged along a level frictionless surface by a hanging block of mass 0*2 kg as shown in the figure . Calculate the tension in the string and the acceleration of blocks .

A block of mass 1kg lies on a horizontal surface in a truck. The coefficeint of friction between the block and surface is 0.5. If the acceleration of the truck is 6ms^(-2) the acceleration of the block relative to ground is

Figure shows two block system, 4 kg block rests on a smooth horizontal surface, upper surface of 4 kg is rough. A block of mass 2 kg is placed on its upper surface. The acceleration of upper block with respect to earth when 4 kg mass is pulled by a force of 30 N, is

A block of mass M_(1)=3kg on a smooth fixed inclined plane of angle 30^(@) is connected by a cord over a small frictionless pulley to a second block mass 2kg hanging vertically. The tension in the cord and the acceleration of each block are ………............. and ...................... respectively.

A block of mass 1 kg is at rest relative to a smooth wedge moving leftwards with constant acceleration a = 5 m//s^(-2) .Let N be the normal reation between the block and the wedge . Then (g = 10 m//s^(-2))

ALLEN-NEWTONS LAWS OF MOTION-EXERCISE-II
  1. A body of mass 2 kg moving on a horizontal surface with an initial vel...

    Text Solution

    |

  2. Gravels are dropped on a conveyor belt at the rate of 0.5 kg / sec . T...

    Text Solution

    |

  3. A block of 5 kg is resting on a frictionaless plane. It is struck by a...

    Text Solution

    |

  4. Two blocks of masses 2 kg and 1 kg are in contact with each other on a...

    Text Solution

    |

  5. Two persons are holding a rope of negligible weight tightly at its end...

    Text Solution

    |

  6. A boy of mass 40 kg is hanging from the horizontal branch of a tree. T...

    Text Solution

    |

  7. A uniform rope of mass M and length L is fixed at its upper end vertic...

    Text Solution

    |

  8. Find the tension T(2) in the system shown in fig.

    Text Solution

    |

  9. Three blocks are connected as shown in fig. on a horizontal frictionle...

    Text Solution

    |

  10. In the fig. given masses m and m' are tied with a tread passing over a...

    Text Solution

    |

  11. Two bodies of masses 5 kg and 4 kg are arranged in two possition as sh...

    Text Solution

    |

  12. Three equal weights of mass 2 kg each are hanging on a string passing ...

    Text Solution

    |

  13. Two blocks each of mass M are resting on a frictionless inclined plane...

    Text Solution

    |

  14. A small sphere is suspended by a string from the ceiling of a car. If ...

    Text Solution

    |

  15. A pendulum is suspended from the roof of a rall road car. When the car...

    Text Solution

    |

  16. Drums of oil are carried in a truck. If a constant accleration is appl...

    Text Solution

    |

  17. A boy sitting on the topmost berth in the compartment of a train which...

    Text Solution

    |

  18. A ball of mass 200g is thrown with a speed 20ms^(-1). The ball strikes...

    Text Solution

    |

  19. A force-time graph for the motion of a body is shown in fig. change in...

    Text Solution

    |

  20. Newton's II law of motion connects:

    Text Solution

    |