A tennis player serves the ball at a height h = 2.5 m with an initial velocity of v, at an angle of 5 with the horizontal. Determine the range of v, for which the hall will land in the service area that extends to 6.4 m beyond the net.

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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.