When a train is traveling along a straight track at 2 m/s, it begins to accelerate at a = (60 v4) m/s², where v is in m/s. Determine its velocity v and the position 3 s after the acceleration. |sa| V Lunds

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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.