two automobiles A and B are approaching each other in adjacent highway lanes. at t=0, A and B are 3200ft apart. Their speeds are Va= 65 mi/h and Vb= 40 mi/h, and they are at points P and Q, respectively. knowing that A passes point Q 40s after B was there and that B passes point P 42s after A was there: A) determine the speed of B at the moment that it passes A in ft/s B.) when the vehicles pass each other in seconds C.) uniform acceleration of B in ft/s^

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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.