Home
Class 12
PHYSICS
As shown in figure, the left block rests...

As shown in figure, the left block rests on a table at distance `l` from the edge while the right block is kept at the same level so that thread is unstrectched and does not sah and then released. What will happen first?

A

Left block reach the edge to the table

B

Right block hit the table

C

Both (1) & (2) happens at the same time

D

Can't say anything

Text Solution

Verified by Experts

The correct Answer is:
A
Tension remains horizontal on left block but only component of tension acts on right block so, left block will come to pulley first
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A fixed thermally conducting cylinder has a radius R and height L_0 . The cylinder is open at its bottom and has a small hole at its top. A piston of mass M is held at a distance L from the top surface, as shown in the figure. The atmospheric pressure is P_0 . While the piston is at a distance 2L from the top, the hole at the top is sealed. The piston is then released, to a position where it can stay in equilibrium. In this condition, the distance of the piston from the top is

Infinite numbers of bloks are placed on a table on a edge as shown in the diagram. What is the minimum value of L so that the blocks are just going to topple over the table ?

A block of mass 0.9 kg attached to a spring of force constant k is lying on a frictionless floor. The spring is compressed to sqrt(2) cm and the block is at a distance 1//sqrt(2) cm from the wall as shown in the figure. When the block is released, it makes elastic collision with the wall and its period of motion is 0.2 sec . Find the approximate value of k

As shown in the right figure, a point light source is placed at distance 2f from a lens with focus length f. and a screen is placed at 4f from the lens. The lens is then cut at the middle into two equal portions: upper half and lower half. the upper half is moved upwards by a small distance d comparable to the light wavelength and the lower half is moved downwards by the same distance d. What is the light pattern on the screen?

In the figure, block A is released from rest when the spring is its natural length for the block B of mass m to leave contact with the ground at some stage what should be the minimum mass of block A? .

A rod of mass M and length K is hinged at its one end n carris a block f mass m at its other end. A spring of force constant k_(1) is installed at distance a form the hinge and another of force constant k_(2) at a distance b as shown in the figure. If the whole arrangement rests on a smoth horizontal table top. Find the frequency of vibrations.

A fixed thermally conducting cylinder has a radius R and height L_0 . The cylinder is open at its bottom and has a small hole at its top. A piston of mass M is held at a distance L from the top surface, as shown in the figure. The atmospheric pressure is P_0 . The piston is taken completely out of the cylinder. The hole at the top is sealed. A water tank is brought below the cylinder and put in a position so that the water surface in the tank is at the same level as the top of the cylinder as shown in the figure. The density of the water is rho . In equilibrium, the height H of the water coulmn in the cylinder satisfies

A stone is tied to an elastic string of negligible mass and spring constant k. The unstretched length of the string is L and has negligible mass. The other end of the string is fixed to a nail at a point P. Initially the stone is at the same level as the point P. The stone is dropped vertically from point P. (a) Find the distance 'y' from the top when the mass comes to rest for an instant, for the first time. (b) What is the maximum velocity attained by the stone in this drop ? (c) What shall be the nature of the motion after the stone has reached its lowest point ?

In the figure there is a long horizontal bridge over a river 75 m high from water surface. A strong man throws a stone in the parallel plane of the bridge. A observer in a car travelling on the bridge finds the stone going pass by the car while ascending and also while descending between two points on the road 30 m away. The car is travelling at a speed of 15 m/s. The stone is thrown from the bank of river just at the same level of water. What is the distance between car and atone at the instant when particle reaches at point B ?

A disc of mass m and radius r is free to rotate about its centre as shown in the figure. A string is wrapped over its rim and a block of mass m is attached to the free end of the string. The system is released from rest. The speed of the block as it descends through a height h, is :-

ALLEN -TEST PAPER-Exercise (Physics)
  1. A particle of mass m oscillates inside a smooth spherical shell of rad...

    Text Solution

    |

  2. An object of mass m is released from rest at a height h above the surf...

    Text Solution

    |

  3. As shown in figure, the left block rests on a table at distance l from...

    Text Solution

    |

  4. The following curve represents a function y=f(x). Find average value o...

    Text Solution

    |

  5. Two students A & B carried out an experiment to measure the time perio...

    Text Solution

    |

  6. A car leaves Kota for Bundi every 12 minutes The distance between Kota...

    Text Solution

    |

  7. Consider following speed time graphs describing motion of two bodies A...

    Text Solution

    |

  8. A projectile takes off with an initial velocity of 50m//s at an angle ...

    Text Solution

    |

  9. A ball is thrown from the top of a 60m high tower with velocity 20sqrt...

    Text Solution

    |

  10. Two particle are moing along X and Y axes towards the origin with cons...

    Text Solution

    |

  11. If system is in equilibrium then find relation between m(1) and m(2)

    Text Solution

    |

  12. The childern are trying to shoot a marble into a marble into a small b...

    Text Solution

    |

  13. A bead slides on a frictoinless strainght rod fixed between points A a...

    Text Solution

    |

  14. The hour hand of a clock is 6 cm long. The magnitude of the displaceme...

    Text Solution

    |

  15. A particle (bob) of mass 1 kg is performing vertical cicular motion. T...

    Text Solution

    |

  16. In case of an ideal spring, we take the reference point (where potenti...

    Text Solution

    |

  17. A machinst starts with three identical square plates but cuts one corn...

    Text Solution

    |

  18. A block of mass m lies on a horizontal frictionless surface and is att...

    Text Solution

    |

  19. Two pucks are initially moving along a frictionless surface as shown i...

    Text Solution

    |

  20. Three particles with equal mass move with equal speed v along the medi...

    Text Solution

    |