Home
Class 12
PHYSICS
A small of mass m starts from rest at th...

A small of mass m starts from rest at the position shown and slides along the frictionless loop the loop track of radius R. What is the smallest value of y such that the object will slide without losing contact with the track?

A

R/2

B

R

C

R/4

D

3R/4

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A small object of mass m starts from rest at the position shown and slides along the fricationless loop-the -loop track of radius R. What is the smallest value of y such that the object will slide without losing contact with the track?

A block of mass m starts from rest and slides down a frictionless semi-circular track from a height h as shown. When it reaches the lowest point of the track, it collides with a stationary piece of putty also having mass m. If the block and the putty . stick together and continue to slide, the maximum height that the block-putty system could reach is

A block of mass m starts from rest and slides down a frictionless semi-circular track from a height h as shown. When it reaches the lowest point of the track, it collides with a stationary piece of putty also having mass m. If the block and the putty stick together and continue to slide, the maximum height that the block-putty system could reach is

A small block of mass m slides along a frictionless loop-the-loop (loop inside loop) track. What should be the ratio of the radius of the outer loop to the radius of the inner loop so that the the block may not lose contact at the highest point of the inner loop ?

Figure shows a an incline which ends into a circular track of radius R. What should be the minimum value of height (h), so that the small object shown after release, is able to complete the loop. Neglect friction.

An 900-kg roller-coaster car is launched from a giant spring of constant k = 31 kN//m into a frictionless loop-the-loop track of radius 6.2 m as shown in Figure. What is the minimum amount that the spring must be compressed if the car is to stay on the track ?

A block of mass M with a semicircualr of radius R, rests on a horizontal frictionless surface. A uniform cylinder of radius r and mass m is released from rest the top point A The cylinder slips on the semicircular frictionless track. How far has the block moved when the cylinder reaches the bottom (point B) of the track ? How fast is the block moving when the cylinder reaches the bottom of the track?

In the figure, the block B of mass m starts from rest at the top of a wedge W of mass M. All surfaces are without friction. W can slide on the ground. B slides down onto the ground, moves along it with a speed v, has an elastic collision with the wall, and climbs back two W.

ALLEN-TEST PAPER-Exercise (Physics)
  1. The potential energy (in joules ) function of a particle in a region o...

    Text Solution

    |

  2. AB is a quarter of a smooth horizontal circular track of radius R,A pa...

    Text Solution

    |

  3. The potential energy of a particle of mass 1 kg moving in X-Y plane is...

    Text Solution

    |

  4. A block of mass m is pushed up against a spring, compressing it a dist...

    Text Solution

    |

  5. A train of mass 100 metric tons is ascending uniformly on an incline o...

    Text Solution

    |

  6. in which fo the following cases the centre of mass of a rod is certain...

    Text Solution

    |

  7. A man of mass 80 kg stands on a plank of mass 40 kg. The plank is lyin...

    Text Solution

    |

  8. A monkey of mass 20 kg rides on a 40 kg trolley moving at a constant s...

    Text Solution

    |

  9. A ball A moving with a velocity 5 m/s collides elastically with anothe...

    Text Solution

    |

  10. The angular speed of a star spinning about its axis increases as the s...

    Text Solution

    |

  11. A mass m=1 kg hangs from the wheel of radius R=1 m .When released fro...

    Text Solution

    |

  12. In the following figure, a sphere of radius 3m rolls on a plank. The a...

    Text Solution

    |

  13. Three parallel forces are acting on a rod at distances of 40 cm, 60 cm...

    Text Solution

    |

  14. A cylinder rolls up an inclined plane, reaches some height, and then r...

    Text Solution

    |

  15. Two blocks are resting on ground with masses 5 kg and 7 kg. A spring c...

    Text Solution

    |

  16. A body is dropped from height 8m. After striking the surface it rises ...

    Text Solution

    |

  17. A uniform equilateral triangular lamina of side a has mass m. Its mome...

    Text Solution

    |

  18. For a particle rotating in a vertical circle with uniform speed, the m...

    Text Solution

    |

  19. A small of mass m starts from rest at the position shown and slides al...

    Text Solution

    |

  20. A block is released from rest from top of a rough curved track as show...

    Text Solution

    |