Find the magnitude α of the angular acceleration of the cylinder as the block descends.

Answer:- 2g/3r refers to the magnitude alpha of angular acceleration of cylinder when the block descends.

The linear acceleration a of the declining down block as well as the angular acceleration α of the cylinder are connected by the equation a=Rα

• Since the string do not slip over the cylinder. The term R refers to the radius of the cylinder.
• Newton’s second law can be practical to both the cylinder and the block to get the respective equations of motion.