Question: An instrument package is projected vertically upward to collect data near the top of the Earths atmosphere (at an altitude of about 900 km). (a)

An instrument package is projected vertically upward to collect data near the top of the Earth’s atmosphere (at an altitude of about 900 km).
(a) What initial speed is required at the Earth’s surface for the package to reach this height?
(b) What percentage of the escape speed is this initial speed?

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