Home
Class 11
PHYSICS
A cube of mass M starts of rest from poi...

A cube of mass M starts of rest from point 1 at a height 4R, where R is the radius of the circular track. The cube slides down the frictionless track and around the loop. The force which the track exerts on the cube at point 2 is :

A

3 Mg

B

Mg

C

2Mg

D

Cube will not reach the point 2

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    PHYSICS GALAXY - ASHISH ARORA|Exercise unsolvedMCQ|78 Videos

  • WORK, ENERGY AND POWER

    PHYSICS GALAXY - ASHISH ARORA|Exercise unsolved|1 Videos

  • WORK, ENERGY AND POWER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Discussion Question|31 Videos

  • RIGID BODIES AND ROTATIONAL MOTION

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical|63 Videos

Similar Questions

Explore conceptually related problems

An object of mass m is released from rest at a height h above the surface of a table. The object slides along the inside of the loop. The loop track consisting of a ramp and a circular loop of radius R shown in the figure. Assume that the track is frictionless. When the object is at the top of the circular track it pushes against the track with a force equal to three times its weight. What height was the object dropped from?

A particle of mass m is released from point A as shown in the gigure. Would it loop the loop if H=4r? What is the force on the circular track when it is at point (a) B, (b) C?

Figure shows a loop track whose lower part ends into a circular track of radius R and centre O. A small solid sphere of mass M rolls without slipping along the loop track from the end A at a height 6R from the bottom of the track. What is the horizontal force acting on the sphere, when it rises up to the point P in level with the centre O of the circular part ?

A block of mass M = 2 kg with a semicircular track of radius R = 1.1 m rests on a horizontal frictionless surface. A uniform cylinder of radius r = 10 cm and mass = 1.0 kg is released from rest from the top point A. the cylinder slips on the semicircular frictionless track. The speed of the block when the cylinder reaches the bottom of the track at B is (g =10ms^(-2))

A smooth track, fixed to the ground, is in the shape of a quarter of a circle. Two small blocks of mass 3m and 2m are released from the two edges A and B of the circular track. The masses slide down and collide at centre O of the track. Vertical height of A and B from O is h = 2m . Collision is elastic. Find the maximum height (above O) attained by the block of mass 2m after collision

A marble and a cube are placed at the top of a ramp. Starting from rest at the same height, the marble rolls and the cube slides (no kinetic friction) down the ramp. Determine the ratio of the center-of-mass speed of the cube to the center-of-mass speed of the marble at the bottom of the ramp.

A marble and a cube are placed at the top of a ramp. Starting from rest at the same height, the marble rolls and the cube slides (no kinetic friction) down the ramp. Determine the ratio of the center-of-mass speed of the cube to the center-of-mass speed of the marble at the bottom of the ramp.

PHYSICS GALAXY - ASHISH ARORA-WORK, ENERGY AND POWER-MCQ
  1. A smooth ring of mass M is threaded on a string whose ends are then th...

    Text Solution

    |

  2. A particle is kept fixed on a turntable rotating uniformly. As seen fr...

    Text Solution

    |

  3. A cube of mass M starts of rest from point 1 at a height 4R, where R i...

    Text Solution

    |

  4. A block is attached to a spring of stiffness k. The other end of the s...

    Text Solution

    |

  5. A heavy body of mass 25kg is to be dragged along a horizontal plane (...

    Text Solution

    |

  6. A block of mass m is placed at the top of a smooth wedge ABC. The wedg...

    Text Solution

    |

  7. The work done in moving a particle from a point (1,1) to (2,3) in a pl...

    Text Solution

    |

  8. A particles of mass m is fixed to one end of a light spring of force c...

    Text Solution

    |

  9. A simple pendulum having bob of maas m is suspended from the ceiling o...

    Text Solution

    |

  10. A spring, which is initially in its unstretched condition, is first st...

    Text Solution

    |

  11. A particle of mass m moves from rest under the action of a constant f...

    Text Solution

    |

  12. A boy whose mass is 30 kg climbs, with a constant speed, a vertical ro...

    Text Solution

    |

  13. A body with mass 2kg moves in one direction in the presence of a force...

    Text Solution

    |

  14. A particle of mass 0.1 kg is subjected to a force which varies with di...

    Text Solution

    |

  15. A motor is to be used to lift water from a depth of 10 m & discharging...

    Text Solution

    |

  16. A small block slides with velocity 0.5sqrt(gr) on the horizontal frict...

    Text Solution

    |

  17. A stone of mass 1 kg tied to a light inextensible string of lenth L=(...

    Text Solution

    |

  18. A particle of mass m is attached to one end of a string of length l wh...

    Text Solution

    |

  19. Two particles, each of mass m are attached to the two ends of a light ...

    Text Solution

    |

  20. Two springs A and B (k(A)=2k(B)) are stretched by applying forces of e...

    Text Solution

    |