A roofer tosses a small tool to the ground. What minimum magnitude vo of horizontal velocity is required to just miss the roof corner B? Also determine the distance d. Answers: Vo= d= F i -2.7 m- 10 B 1.4 m + +96 m 0.9 m 3.3 m m/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.