A toy helicopter is flying in a straight line at a constant speed of 4.35 m/s. If a projectile is launched vertically with an initial speed of v,=29.50m/s, what horizontal distance d should the helicopter be from the launch site S if the projectile is to be traveling downward when it strikes the helicopter, meters? Assume that the projectile travels only in the vertical direction. 4.35m/s 35m а. 7.073 с. 24.124 b. 8.253 d. 19.089

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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.