Motion of Falling Bodies
Two Competing Descriptions:
- Aristotle: Bodies falling in the same medium fall with speeds proportional to their weights.
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- Galileo: In a medium totally devoid of resistance, all bodies will fall at the same speed and during equal intervals of time receive equal increments of velocity.
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- The key to Galileo’s advance was to propose a law that applies to an idealized situation (no resistance) and to test it by controlled experiments