A helicopter is ascending at rate of 12 m/s . At a height of 80 m above the ground ,a package is dropped .how long does the package take to reach the ground ?
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Expert's answer
2012-11-27T08:51:20-0500
v0=12 m/s H=-v0*t+gt^2/2 90=-12*t+4.6t^2 Solving this equation we get:t=5.916
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