Home
Class 11
PHYSICS
If a block of mass m lying on a friction...

If a block of mass m lying on a frictionless inclined plane of length L height h and angle of inclination ` theta ` , then the time taken to reach the bottom is

A

`g sin theta `

B

`sin theta sqrt((2h)/(g) )`

C

`sin theta sqrt( (g)/(2h))`

D

`(1)/(sin theta) sqrt((2h)/(g)) `

Text Solution

Verified by Experts

The correct Answer is:
D

`sqrt(2gh)`
Promotional Banner

Topper's Solved these Questions

  • LAW OF MOTION

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (SHORT ANSWER QUESTIONS)|27 Videos
  • LAW OF MOTION

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED (SHORT ANSWER QUESTIONS (2 MARKS))|12 Videos
  • LAW OF MOTION

    FULL MARKS|Exercise TEXTUAL QUESTIONS SOLVED (NUMERICAL PROBLEMS)|15 Videos
  • KINETIC THEORY OF GASES

    FULL MARKS|Exercise Addtional Numerical Problems|10 Videos
  • MOTION OF SYSTEM OF PARTICLES AND RIGID BODIES

    FULL MARKS|Exercise ADDITIONAL QUESTIONS SOLVED - III (LONG ANSWER QUESTIONS (5 MARKS))|6 Videos

Similar Questions

Explore conceptually related problems

If a block of mass m lying on a frictionless inclined plane of length L height h and angle of inclination theta , then the velocity at its bottom is

A block of mass 3 kg is at rest on a rough inclined plane with angle of inclination 30^@ with horizontal. If mu_s = 0.7, then the frictional force is

A block A can slide on a frictionless incline of angle theta and length l, kept inside an elevator going up with uniform velocity v. Find the time taken by the block to slide down the length of the incline if it is released from the top of the incline.

When an object of mass m slides on a friction less surface inclined at an angle theta then normal force exerted by the surface is

An object of mass m=1 kg is sliding from top to bottom in the frictionless inclined plane of inclination angle theta = 30^(@) and the length of inclined plane is 10m as shown in the figure. Calculate the work done by gravitational force and normal force on the object Assume acceleration due to gravity, g=10ms^(-2)

A sphere rolls down an inclined plane of inclination theta . What is the acceleration as the sphere reaches bottom ?

A cubical block of mass M and edge a slides down a rougg inclined plane of inclination theta with a uniform velocity. The torque of the normal force on the block about its centre has magnitude.

A block of mass m is placed on a smooth inclined plane of inclination theta with the horizontal. The force exerted by the plane on the block has a magnitude

A body of mass 0.3 kg is taken up an inclined plane of length 10 m and height 5 m and then allowed to slide down to bottom again. Find kinetic energy at the end of the trip.

FULL MARKS-LAW OF MOTION -ADDITIONAL QUESTIONS SOLVED (MULTIPLE CHOICE QUESTIONS)
  1. Two masses connected with a string. When a force F is applied on mass ...

    Text Solution

    |

  2. If a block of mass m lying on a frictionless inclined plane of length ...

    Text Solution

    |

  3. If a block of mass m lying on a frictionless inclined plane of length ...

    Text Solution

    |

  4. A rocket works on the principle of conservation of

    Text Solution

    |

  5. A bomb at rest explodes. The total momentum of all its fragments is

    Text Solution

    |

  6. A block of mass m1 is pulled along a horizontal frictionless surface ...

    Text Solution

    |

  7. A block of mass m is pulled along a horizontal surface by a rope. The ...

    Text Solution

    |

  8. The lines of forces act at a common point is called as

    Text Solution

    |

  9. If the lines of forces act in the same plane, they can be

    Text Solution

    |

  10. Lami's theorem is applicable only when the system of forces are in

    Text Solution

    |

  11. Due to the action of internal forces of the system, the total linear m...

    Text Solution

    |

  12. The velocity with which a gun suddenly moves backward after firing is

    Text Solution

    |

  13. A large force acting for a very short interval of time is called as ……...

    Text Solution

    |

  14. SI unit of impulse is

    Text Solution

    |

  15. The force which always opposes the relative motion between an object a...

    Text Solution

    |

  16. The force Which acts in order to oppose the relative motion of the lay...

    Text Solution

    |

  17. When the object is at rest, the resultant of gravitational force and u...

    Text Solution

    |

  18. The magnitude of static frictional force fs lies between

    Text Solution

    |

  19. The unit of coefficient of static friction is

    Text Solution

    |

  20. If the object is at rest and no external force is applied on the objec...

    Text Solution

    |