If a car is moving along a straight line road such that its position is described be the given graph as shown in figure. Find the acceleration at t= 12 sec. at (

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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.