When three varying masses are dropped from identical heights inside a vacuum chamber, their fall times will be______________?
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Answer: A. same time to reach earth
Explanation
In a vacuum chamber where air resistance is absent, all falling objects accelerate equally due to gravity. Galileo demonstrated that gravitational acceleration is independent of mass, causing all bodies to fall at the exact same rate. Because no aerodynamic drag forces retard their motion, varying masses released simultaneously will reach the ground together. Free fall represents the vertical motion of an object subjected exclusively to the influence of a gravitational force field. Near the Earth surface, the standard acceleration due to gravity is approximately 9.81 meters per second squared. In normal atmospheric conditions, lighter objects appear to fall slower only because air resistance opposes their downward motion.
Option B is incorrect because heavier objects do not fall faster in the absence of retarding atmospheric drag forces. Option C is wrong because mass has no inverse proportional relationship to gravitational acceleration in a vacuum environment. Option D is incorrect because gravitational acceleration is a predictable physical constant that yields deterministic outcomes.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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