Home
Class 11
PHYSICS
Concrete blocks of masses mA and mB are ...

Concrete blocks of masses `m_A` and `m_B` are balanced on two identical vertical springs `m_A = 2m_B` . The gravitational potential energy of each system is zero at the equilibrium position of the springs. Which statements is true for the total mechanical energy of the systems when the blocks are balanced on the springs?

A

`E_A = E_B`

B

`E_A = 2E_B`

C

`E_A = 4E_B`

D

`E_A = -2E_B`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|34 Videos
  • WORK, ENERGY AND POWER

    MTG GUIDE|Exercise NEET CAFE (TOPICWISE PRACTICE QUESTIONS) (COLLISIONS)|35 Videos
  • THERMODYNAMICS

    MTG GUIDE|Exercise AIPMT/NEET (MCQs)|26 Videos

Similar Questions

Explore conceptually related problems

Concerete block of mass m_(A) and m_(B) . The gravitutional potential energy of each system is zero at the equilibrium position of the springs. Which ststement is true for the total machanical energy of the springs. Which system when the block , are balanced on the springs?

Two blocks of masses m_1 and m_2 are attached to the lower end of a light vertical spring of force constant k. The upper end of the spring is fixed. When the system is in equilibrium, the lower block (m_2) drops off. The other block (m_1) will

A block of mass m held touching the upper end of a light spring of force constant K as shown in figure. Find the maximum potential energy stored in the spring if the block is released suddenly on the spring.

In figure, k = 100 N//m, M = 1kg and F = 10 N (a) Find the compression of the spring in the equilibrium position (b) A sharp blow by some external agent imparts a speed of 2 m//s to the block towards left. Find the sum of the potential energy of the spring and the kinetic energy of the block at this instant. (c) Find the time period of the resulting simple harmonic motion. (d) Find the amplitude. (e) Write the potential energy of the spring when the block is at the left estreme. (f) Write the potential energy of the spring when the block is at the right extreme. The answers of (b), (e) and (f) are different. Explain why this does not violate the principle of conservation of energy ?

Two blocks A and B of masses m_A and m_B are connected together by means of a spring and are resting on a horizontal frictionless table. The blocks are then pulled apart so as to stretch the spring and then released. Show that the kinetic energies of the blocks are, at any instant inversely proportional to their masses.

A block of mass m hangs from a vertical spring of spring constant k. If it is displaced from its equilibrium position, find the time period of oscillations.

A rod mass (M) hinged at (O) is kept in equilibrium with a spring of stiffness (k) as shown in figure. The potential energy stored in the spring is .

Spring mass system is shown in figure. Find the elastic potential energy stored in each spring when block is at its mean position. Also find the time period of vertical oscillations. The system is in vertical plane.

Spring mass system is shown in figure. Find the elastic potential energy stored in each spring when block is at its mean position. Also find the time period of vertical oscillations. The system is in vertical plane.

A light spring is vertical and a mass less pan is attached to it. Force constant of the spring is k. A block of mass m is gently dropped on the pan. Plot the variation of spring potential energy, gravitation potential energy and the total potential energy of the system as a function of displacement (x) of the block. For gravitational potential energy take referece level to the initial postion of the pan.

MTG GUIDE-WORK, ENERGY AND POWER-CHECK YOUR NEET VITALS
  1. Match the Column I with Column II.

    Text Solution

    |

  2. A 1 kg block situated on a rough incline is connected to a spring of n...

    Text Solution

    |

  3. The kinetic energy of a body is increased by 56%. The momentum is incr...

    Text Solution

    |

  4. A body of mass 4 kg is moving with momentum of 8 kg m s^(-1). A force ...

    Text Solution

    |

  5. A uniform chain of length L and mass M is lying on a smooth table and ...

    Text Solution

    |

  6. The system is released from rest with the spring initially stretched 7...

    Text Solution

    |

  7. A car manufacturer claims that his car can be accelerated from rest to...

    Text Solution

    |

  8. A gun of mass 20 kg has bullet of mass 0.1 kg in it. The gun is free t...

    Text Solution

    |

  9. A body of mass m, moving with a uniform velocity of 30 m s^(-1) collid...

    Text Solution

    |

  10. A block of mass 10 kg is moving in x-direction with a constant speed o...

    Text Solution

    |

  11. Two spheres A and B of masses m1 and m2 respectively collide. A is at ...

    Text Solution

    |

  12. A girl in a swing is 2.5 m above ground at the maximum height and at 1...

    Text Solution

    |

  13. An open watertight railway wagon of mass 5 xx 10^3 kg is moving with a...

    Text Solution

    |

  14. A truck accelerates from speed v to 2v. Work done during this is

    Text Solution

    |

  15. One boy takes 2 min to raise a box to a height of 1 m and another boy ...

    Text Solution

    |

  16. When a long spring is stretched by 2 cm, its potential energy is U. If...

    Text Solution

    |

  17. The displacement of a body of mass 2 kg varies with time t as S = t^2 ...

    Text Solution

    |

  18. The work done by external agent in stretching a spring of force consta...

    Text Solution

    |

  19. One end of an unstretched vertical spring is attached to the ceiling a...

    Text Solution

    |

  20. Concrete blocks of masses mA and mB are balanced on two identical vert...

    Text Solution

    |