rotational-motion

Related Questions

• A fly wheel of moment of inertia I is rotating at n revolutions per sec. The work needed to double the frequency would be

  ---

• A smooth sphere A is moving on a frictionless horizontal plane with angular speed $\omega $ and center of mass with velocity $v$. It collides elastically and head-on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ${{\omega }_{A}}$ and ${{\omega }_{B}}$ respectively. Then

  ---

• According to the theorem of parallel axes $I={{I}_{g}}+M{{d}^{2}}$, the graph between $I$ and $d$ will be

  ---

• The speed of a homogeneous solid sphere after rolling down an inclined plane of vertical height h, from rest without sliding, is

  ---

• The speed of rolling of a ring of mass $M$ changes from $V$to $3V$. What is the change in its kinetic energy

  ---