Vertical Motion and Free Fall Video Lessons

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Problem: A helicopter is ascending vertically with a speed of 5.40 m/s. At a height of 105 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 the v0 for the package?]

FREE Expert Solution

Use the kinematic equation:

y=v0t+12gt2

Solve, substitute, and calculate t as follows:

105=(-5.40)t+12(9.81)t24.905t2-5.40t-105=0

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Problem Details

A helicopter is ascending vertically with a speed of 5.40 m/s. At a height of 105 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 the v0 for the package?]

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