A body of mass 2 slugs is dropped from a height of yftwith an initial velocity of 10 ft/sec. Assuming no air resistance, find: (a) an expression for the velocity of the body at any time t and (b) the time required for the body to hit the ground.   Use y =80

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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.