A cord is wound round the circumference of wheel of radius

A cord is wound round the circumference of wheel of radius r.The axis of the wheel is horizontal and moment of inertia about it is I.A weight mg is attached to the end of the cord and fills from the rest .After falling through a distance h, the angular velocity of the wheel will be

Options

(a) √2gh / (1 + mr)
(b) √2mgh / (1 + mr²)¹/²
(c) √2mgh / (1 +2mr²)¹/²
(d) √2gh

Correct Answer:

√2mgh / (1 + mr²)¹/²

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

admin:

Related Questions

  1. The ratio of speed of an electron in ground state in Bohr’s first orbit of hydrogen atom
  2. For a parallel beam of monochromatic light of wavelength λ diffraction is produced
  3. When an electron beam passes through an electric field they gain kinetic energy.
  4. Two bulbs when connected in parallel to a source take 60W each, the power consumed,
  5. The electrons are emitted in the photoelectric effect from a metal surface