In the figure, the disc D does not slip on the surface S. The pulley P has mass, and the…
Physics · JEE Advanced · NTA Exams — Rotational Motion
In the figure, the disc D does not slip on the surface S. The pulley P has mass, and the string does not slip on it. The string is wound around the disc.
- The acceleration of the block B is double the acceleration of the centre of D
- The force of friction exerted by D on S acts to the left
- The horizontal and the vertical sections of the string have the same tension
- The sum of the kinetic energies of D & B is less than the loss in the potential energy of B as it move down.
Answer
(A) The acceleration of the block B is double the acceleration of the centre of D, (B) The force of friction exerted by D on S acts to the left, (D) The sum of the kinetic energies of D & B is less than the loss in the potential energy of B as it move down.
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