Home
Class 11
PHYSICS
A small block of superdense material has...

A small block of superdense material has a mass `(M)/(3)` , where M is the mass of earth . It is released from rest from a height h ( h `lt lt ` radius of earth) from the surface of earth . The speed of the block at a height `(h)/(2)` is

A

`sqrt(gh)`

B

`sqrt((3gh))/(2)`

C

`sqrt((2gh)/(3))`

D

`sqrt(2gh)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY ENGLISH|Exercise More a than one option is Correct|1 Videos

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY ENGLISH|Exercise Comprehension type questions|15 Videos

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY ENGLISH|Exercise Comprehension type questions|15 Videos

  • CENTRE OF MASS

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|27 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY ENGLISH|Exercise Level 2 Subjective|21 Videos

Similar Questions

Explore conceptually related problems

A small body of superdense material, whose mass is twice the mass of the earth but whose size is very small compared to the size of the earth, starts form rest at a height H lt lt R above the earth's surface, and reaches the earth's surface in time t . then t is equal to

A small block of super dense material has mass 2 xx 10^(24) kg . It is at a height h lt lt R . It falls towards the earth.Find its speed when it is at a height ( h )/( 2)

A body of mass 2 kg is dropped from rest from a height 20 m from the surface of Earth. The body hits the ground with velocity 10 m/s, then work done: (g=10m//s^(2))

A body of mass m is taken from earth surface to the height h equal to radius of earth, the increase in potential energy will be

The work done to raise a mass m from the surface of the earth to a height h, which is equal to the radius of the earth, is :

Two balls are dropped from heights h and 2h respectively from the earth surface. The ratio of time of these balls to reach the earth is.

An object of mass m is released from rest from the top of a smooth inclined plane of height h. Its speed at the bottom of the plane is proportional to

A block of mass m is relesed from rest from a height h onto a smooth surface of mass M fitted with an ideal spring of stiffness k . find the maximum compression in the spring.

A body of mass m is lifted up from the surface of earth to a height three times the radius of the earth R . The change in potential energy of the body is

A solid sphere of mass M and radius R is surrounded by a spherical shell of same mass M and radius 2R as shown. A small particle of mass m is released from rest from a height h(lt lt R) above the shell. There is a hole inn the shell. QIn what time will it enter the hole at A

DC PANDEY ENGLISH-CENTRE OF MASS, IMPULSE AND MOMENTUM-Only one option is correct for JEE Advanced
  1. A particle of mass m(1) moves with speed v and collides head on with a...

    Text Solution

    |

  2. A gun fires a bullet. The barrel of the gun is inclined at an angle of...

    Text Solution

    |

  3. A small block of superdense material has a mass (M)/(3) , where M is t...

    Text Solution

    |

  4. A block of mass m is pushed towards a movable wedge of mass nm and hei...

    Text Solution

    |

  5. A block of mass m slides down on inclined wedge of same mass m as show...

    Text Solution

    |

  6. A block A slides over an another block B which is placed over a smooth...

    Text Solution

    |

  7. The momentum of a particle is P = A + Bt^(2) . Where , A and B are con...

    Text Solution

    |

  8. Velocity of centre of mass of two particles is v and the sum of masses...

    Text Solution

    |

  9. Two blocks A and B of equal masses are attached to a string passing ov...

    Text Solution

    |

  10. A rope thrown over a pulley has a ladder with a man of mass m on one o...

    Text Solution

    |

  11. Two particles of equal mass have velocities vec v1 = 2 hat i= m//s^-1 ...

    Text Solution

    |

  12. A particle of mass 2m is projected at an angle of 45^@ with horizontal...

    Text Solution

    |

  13. Choose the correct option: A system of two blocks A and B and a wedg...

    Text Solution

    |

  14. A small sphere of radius R is held against the inner surface of larger...

    Text Solution

    |

  15. A block of mass m slides over a smooth wedge of mass M which is placed...

    Text Solution

    |

  16. Two particles A and B of equal mass m are attached by a string of leng...

    Text Solution

    |

  17. A mass m rests on a horizontal table. It is attached to a light inext...

    Text Solution

    |

  18. Two identical balls A and B are released from the position shown in Fi...

    Text Solution

    |

  19. A small block of mass M moves with velocity 5 m/s towards an another b...

    Text Solution

    |

  20. A particle of mass m collides with a stationary particle and continues...

    Text Solution

    |