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A helicopter is ascending vertically with a speed of 5.50 m/s. At a height of 155 m above the Earth, a package is dropped from...Asked by Chasity
A helicopter is ascending vertically with a speed of 4.50 m/s. At a height of 195 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? [Hint: The package's initial speed equals the helicopter's.]
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Answered by
bobpursley
hf=0=hi+vi*t+1/2 g t^2
solve this squadratic equation for t
hi=195
g=-9.8
vi=4.50
solve this squadratic equation for t
hi=195
g=-9.8
vi=4.50