A locomotive is traveling on the straight and level track with a speed v = 79 km/h and a deceleration a = 0.6 m/s2 as shown. Relative to the fixed observer at O, determine the quantities r, r, 0, and 0 at the instant when 0 = 64° and r = 375 m. Answers: 0= i H i i i = m 13° F = H = m/s m/s² rad/s rad/s² 0 OUP, V F H

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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.