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A helicopter is ascending vertically with a speed of 9.7 m/s. At a height of 175...

A helicopter is ascending vertically with a speed of 9.7 m/s. At a height of 175 m above the Earth, a package is dropped from the helicopter. How much time does it take for the package to reach the ground? [Hint: What is v 0 for the package?] (Your answer must be in units of seconds and include two digits after the decimal point. Maximum of 3% of error is accepted in your answer.  Take g=9.80 m/s 2.)

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Answer #1

Here to find the time taken t can be find using below formula

  

Here we take S and a negative since they are directed towards downward (negative y-axis) from point of drop.

Time taken by the package to reach ground , t= 7.05 sec

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