A cylinder of mass M=500kg has an axle of radius b=1m and a spool of radius R=3m. It is placed upright on a table and the string is pulled with a horizontal force F=750N to the right as shown in the figure. The cylinder is rolling without slipping and the coefficient of static friction between the cylinder and the table is µ​s ​=0.34. I = 1/2 MR​^2

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.