3) A uniform cylinder is free to roll without slip. At all times a horizontal force acts with a force of 4N. Initially it is rotating with an angular velocity of -12k rad/s. a) Determine the magnitude of the cylinder's angular velocity (in rad/s) after it has rolled 2n radians in the clockwise direction. m 10 kg and r = 0.20 m. [Ans. to Check: 11.28 rad/sec] b) Briefly explain what solution method you used to solve and why. j F

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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.