2. A ball is dropped from rest from a great height. After 2.5 seconds, how fast is it traveling? How far did it fall in this time?
3. Consider dropping this same ball from a 10-m tower. How long will it take to hit the ground? This may require a little algebra.
4. Revisit problem 3. If this has been done on the Moon, would it take more, less or the same time to fall to the ground? How about on Jupiter?
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