A body moves such that its acceleration is given by a = 2 + 12t where t is in seconds and ‘ a’ is in m/s2. If the body starts from rest and its velocity after 1 sec is 2 m/s, what is the distance traveled after 4 sec?

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A: for solution refer below images.

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Q: bent flat bar rotates

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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.