A medium size catapult launches 8-lb steel spheres. The launch speed is the launch angle is above the horizontal, the launch position is 6ft above ground level. An athletic field is used with an adjoining slope topped by an 8ft fence as shown. Determine: (a) the x-y coordinates of the point of first impact (b) the time duration of the flight

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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.