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At NASA’s John H. Glenn research center in Cleveland, Ohio, free-fall research is performed by dropping experiment packages from the top of an evacuated shaft 145 m high. Free fall imitates the so-called micro gravity environment of a satellite in orbit.
(a) What is the maximum time interval for free fall if an experiment package were to fall the entire 145 m?
(b) Actual NASA specifications allow for a 5.18-s drop time interval. How far do the packages drop and
(c) What is their speed at 5.18 s?
(d) What constant acceleration would be required to stop an experiment package in the distance remaining in the shaft after its 5.18-s fall |
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