Questions tagged 'angular momentum'

• The motion of planets in the solar system is an example of the conservation of
  Category: rotational-motion | Tags: angular momentum
• A disc is rotating with an angular speed of $\omega$. If a child sits on it, which of the following is conserved
  Category: rotational-motion | Tags: angular momentum
• A particle of mass m moves along line PC with velocity v as shown. What is the angular momentum of the particle about O
  Category: rotational-motion | Tags: angular momentum
• Two rigid bodies A and B rotate with rotational kinetic energies $E_A$ and $E_B$ respectively. The moments of inertia of A and B about the axis of rotation are $I_A$ and $I_B$ respectively. If $I_A = I_B /4$ and $E_A = 100 E_B$ the ratio of angular momentum ($L_A$) of A to the angular momentum ($L_B$) of B is
  Category: rotational-motion | Tags: angular momentum
• A uniform heavy disc is rotating at constant angular velocity $\omega$ about a vertical axis through its centre and perpendicular to the plane of the disc. Let L be its angular momentum. A lump of plasticine is dropped vertically on the disc and sticks to it. Which will be constant
  Category: rotational-motion | Tags: angular momentum
• An equilateral triangle ABC formed from a uniform wire has two small identical beads initially located at A. The triangle is set rotating about the vertical axis AO. Then the beads are released from rest simultaneously and allowed to slide down, one along AB and the other along AC as shown. Neglecting frictional effects, the quantities that are conserved as the beads slide down, are
  Category: rotational-motion | Tags: angular momentum
• A thin circular ring of mass $M$and radius $r$ is rotating about its axis with a constant angular velocity $\omega $. Two objects each of mass $m$ are attached gently to the opposite ends of a diameter of the ring. The ring will now rotate with an angular velocity
  Category: rotational-motion | Tags: angular momentum
• The earth $E$ moves in an elliptical orbit with the sun $S$ at one of the foci as shown in the figure. Its speed of motion will be maximum at the point
  Category: rotational-motion | Tags: angular momentum
• A rigid spherical body is spinning around an axis without any external torque. Due to change in temperature, the volume increases by 1%. Its angular speed
  Category: rotational-motion | Tags: angular momentum
• A uniform disc of mass $M$ and radius $R$ is rotating about a horizontal axis passing through its centre with angular velocity $\omega $. A piece of mass $m$ breaks from the disc and flies off vertically upwards. The angular speed of the disc will be
  Category: rotational-motion | Tags: angular momentum

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