Home
Class 12
PHYSICS
If the force on a rocket moving with a ...

If the force on a rocket moving with a velocity of 300 m/s is 345 N, then the rate of combustion of the fuel is
(a) 0.55 kg/s (b) 0.75 kg/s (c) 1.15 kg/s (d) 2.25 kg/s

A

0.07 kg/s

B

1.4 kg/s

C

0.7 kg/s

D

10.7 kg/s

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION-D) (Assertion-Reason Type Questions)|15 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION-B)|44 Videos

  • KINETIC THEORY

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE (ASSIGNMENT) SECTION - D Assertion - Reason Type Questions|10 Videos

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION D)|26 Videos

Similar Questions

Explore conceptually related problems

The force on a rocket moving with a veloctiy 300 m/s is 210N. The rate of consumption of fuel of rocket is

A 1.5 kg hammer moving with a velocity of 10 m/s strikes a nail for 0.005 s. The average force exerted on the nail is

A body of mass (1)/(4) kg moving with velocity 12 m//s is stopped by applying a force of 0.6 N. Then impulse is :-

A 0.5 kg ball moves in a circle of radius 0.4 m at a velocity of 4 m/s. The centripetal force on the ball is

A body of mass 5 kg is moving with velocity 2 m s^(-1) . Calculate its linear momentum.

A body of mass 5 kg is moving with velocity 2 m s^(-1) . Calculate its linear momentum.

An object of mass 15kg is moving with a uniform velocity of 4m/s. what is the kinetic energy possessed by the object ?

A rocket of mass 20kg has 180kg fuel. The exhaust velocity of the fuel is 1.6km//s . Calculate the minimum rate of consumption of fuel so that the rocket may rise from the ground. Also, calculate the ultimate vertical speed gained by the rocket when the rate of consumption of fuel is (g=9.8m//s^2) (i) 2kg//s (ii) 20kg//s

Figure shows a boy on a horizontal platform A on a smooth horizontal surface, holding a rope attached to a box B. Boy pulls the rope with a constant force of 50 N. The combined mass of platform A and boy is 250kg and that' of box B is 500kg. The velocity of A relative to the box B 5 s after the boy on A begins to pull ,the rope,will be: (A) 1 m/s (B) 2 m/s (C) 0.5 m/s (D) 1.5 m/s

Certain force acting on a 20 kg mass changes its velocity from 5m//s to 2m//s . calculate the work done by the force.

AAKASH INSTITUTE ENGLISH-LAWS OF MOTION-Assignment (SECTION-C)
  1. A bullet is fired from a gun. The force on the bullet is given by F=60...

    Text Solution

    |

  2. A ball of mass 0.25 kg attached to the end of a string of length 1.96 ...

    Text Solution

    |

  3. A mass of 1 kg is suspended by means of a thread. The system is (i) li...

    Text Solution

    |

  4. If the force on a rocket moving with a velocity of 300 m/s is 345 N, ...

    Text Solution

    |

  5. A 500 kg car takes a round turn of radius 50 m with a velocity of 36...

    Text Solution

    |

  6. Two masses as shown are suspended from a massless pulley. Calculate th...

    Text Solution

    |

  7. A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 second...

    Text Solution

    |

  8. A man is slipping on a frictionless inclined plane & a bag falls down ...

    Text Solution

    |

  9. A body of mass 3 kg moving with velocity 10 m/s hits a wall at an ang...

    Text Solution

    |

  10. A cricketer catches a ball of mass 150 gm. in 0.1 second moving with s...

    Text Solution

    |

  11. On the horizontal surface of a truck (mu=0.6) a block of mass 1 kg is...

    Text Solution

    |

  12. An object of mass 3 kg is at rest. Now a force of vec F = 6 t^2 hat...

    Text Solution

    |

  13. A block of mass 10kg is placed on a rough horizontal surface having co...

    Text Solution

    |

  14. A lift of mass 1000 kg which is moving with an acceleration of 1 ms^...

    Text Solution

    |

  15. A monkey of mass 20kg is holding a vertical rope. The rope will not br...

    Text Solution

    |

  16. A man weighs 80kg . He stands on a weighing scale in a lift which is m...

    Text Solution

    |

  17. The coefficient of static friction, mu(s) between block A of mass 2 k...

    Text Solution

    |

  18. A block of mass m is placed on a smooth wedge of inclination theta. T...

    Text Solution

    |

  19. A car is moving in a circular horizontal track of radius 10 m with a c...

    Text Solution

    |

  20. A man of 50 kg mass is standing in a gravity free space at a height of...

    Text Solution

    |