1. Tardigrade
  2. Question
  3. Physics
  4. A drum of radius R and mass M rolls down without slipping along an inclined plane of angle θ . The frictional force

Q. A drum of radius and mass rolls down without slipping along an inclined plane of angle . The frictional force

 2143  194 NTA AbhyasNTA Abhyas 2020System of Particles and Rotational Motion Report Error

Solution:

When a body rolls down without slipping along an inclined plane of inclination , it rotates about a horizontal axis through its centre of mass and also its centre of mass moves. Therefore, rolling motion may be regarded as a rotational motion about an axis through its centre of mass plus a translational motion of the centre of mass. As it rolls down, it suffers loss in gravitational potential energy provided translational energy due to frictional force is converted into rotational energy.