A helicopter is ascending (moving upwards) at a constant velocity of 8 m/s. At a height of 90m, a passenger opens a window and drops a package to the ground below. How long does it take the package to hit the ground and how fast is it moving just before impact?

Question

A helicopter is ascending (moving upwards) at a constant velocity of 8 m/s.  At a height of 90m, a passenger opens a window and drops a package to the ground below.  How long does it take the package to hit the ground and how fast is it moving just before impact?

bobpursley · Answer

vi=8m/s g= -9.8m/s^2 hf=hi+Vi*t-1/2 9.8t^2 solve for t to hit ground how fast? Vf=Vi-9.8 t