Problem 12.285 A car is traveling at a constant speed vo= 210 km/h along a circular turn with radius R = 137 m (the figure is not to scale). The camera at O is tracking the motion of the car. Letting L = 15 m, determine the camera's rotation rate, as well as the corresponding time rate of change of the rotation rate when = 30°. E B Φ R Figure P12.285 L OPDY on

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Q: Pravinbhai

A: rC/A​={0.5i+0.5j}vC​=−vC​ivC​=vA​+Ω×rC​/A+(vC/A​)xyz​−vC​i=0+(5k)×{0.5i+0.5j}+(vC/A​cos45i+vC/A​sin4…

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.