The automobile is originally at rest s = 0. It then starts to increase its speed at v˙=(0.05t2)ft/s2 , where t is in seconds, Determine the magnitude of its velocity at s = 470 ft . v = ? Determine the magnitude of its acceleration at s = 470 ft . a = ?

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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.