At the instant shown in Fig. TT1.3, during deceleration, the velocity of an automobile is 13.3 m/s to the right. Knowing that the velocity of the contact point A of the wheel with the ground is 2.2 m/s to the right, determine the location of the instantaneous center of rotation of the wheel below point O in mm. Fig. TT1.3: A wheel in contact with the ground.

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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.