Question

true free fall is possible only in vacuum
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Answer 1

Answer:

In free fall, the object's initial velocity is zero and continues to increase owing to the acceleration caused by the earth's gravity.

Explanation:

• During free fall, the frictional force of air resists the object's motion, and a buoyant force also works on it. As a result, real free fall is only conceivable in a vacuum.
• In any given condition, free fall is determined by air friction and gravitational forces.
• An item in free fall in a vacuum at the Earth's surface will accelerate at roughly 9.8 m/s2, regardless of its mass.
• With air resistance acting on a dropped item, the object will ultimately reach a terminal velocity, which for a person is roughly 53 m/s (122 mph).