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A meteorite has a speed of 75.0m/s when 800km above the Earth. It is falling vertically (ignore air resistance) and strikes a bed of sand in which it is brought to rest in 3.50m.
1. How much thermal energy is produced?
E = ____________J
2. What is its speed just before striking the sand?
v = ____________m/s
3. What is the average force exerted by the sand on the meteorite?
|F| = ___________N
4. How much work does the sand do to stop the meteorite (575kg)?
W = _____________J
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