Plane A travels along the indicated path with a constant speed vA = 285 km/h. Relative to the pilot in plane B, which is flying at a constant speed vB = 350 km/h, what are the velocities which plane A appears to have when it is at positions C and E? Both planes are flying horizontally.

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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.