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 ( `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

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

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

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY|Exercise Comprehension type questions|15 Videos

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY|Exercise Comprehension type questions|15 Videos

  • CENTRE OF MASS

    DC PANDEY|Exercise Medical entrances gallery|27 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 2 Subjective|21 Videos

Similar Questions

Explore conceptually related problems

A small block of super dense material has a mass equal to the half of the mass of the earth . It is released from the height H(H lt lt radius of the earth) . Find its speed when its height from the eath surface decreases by 75% .

What is the acceleration due to gravity at a height h ( = radius of the earth) from the surface of the earth ? ltbgt (g=9.8m//s^(2))

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 superdennse material has a mass of 3xx10^24 kg. It is situated at a height h (much smaller than the earth's radius) from where it falls on the earth's surface. Find its speed when its height from the earth's surface has reduced to h/2 . The mass of the earth is 6xx10^24kg

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

A small body of super dense material, whose mass is half the mass of the earth (but whose size is very small compared to the size of the earth), starts from rest at a height H above the earth’s surface, and reaches the earth’s surface in time t. Calculate time t assuming that H is very small compared to the radius of the earth. Acceleration due to gravity near the surface of the earth is g.

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

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 :

DC PANDEY-CENTRE OF MASS, IMPULSE AND MOMENTUM-Only one option is correct for JEE Advanced
  1. A tennis ball bounces down a flight of stairs, striking each step in t...

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  12. A system of two blocks A and B and a wedge C are released from rest as...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. A gun fires a shell and recoils horizontally . If the shell travels al...

    Text Solution

    |

  20. A body of mass m(0) is placed on a smooth horizontal surface . The mas...

    Text Solution

    |