The car starts from rest at s = 0 and increases its speed at at = 4 m/s2. Determine the time when the magnitude of acceleration becomes 20 m/s2. At what position s does this occur.

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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.