A particle with mass 5 kg travels in a circular path with a radius of 1 m.  A couple moment is applied which results in a tangential acceleration of 20 m/s2.  What is the magnitude of the couple moment in Nm? 5 Nm 100 Nm 20 Nm 10  Nm

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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.