a helicopter is traveling horizontally at 20 ms at a height of 50 meters above a point p on horizontal ground when it releases a package
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A helicopter is flying horizontally at $8.0 \mathrm{m} / \mathrm{s}$ and an altitude of $18 \mathrm{m}$ when a package of emergency medical supplies is ejected horizontally backward with a speed of $12 \mathrm{m} / \mathrm{s}$ relative to the helicopter. Ignoring air resistance, what is the horizontal distance between the package and the helicopter when the package hits the ground?
A helicopter is lifting off from the ground and is moving vertically upward. The graph shows its vertical velocity $v_{y}$ versus time. How high is the helicopter after $12.0 \mathrm{~s}$ have elapsed?
A toy helicopter is flying in a straight line at a constant speed of $4.5 \mathrm{m} / \mathrm{s}$. If a projectile is launched vertically with an initial speed of $v_{0}=28 \mathrm{m} / \mathrm{s}$, 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? Assume that the projectile travels only in the vertical direction.
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