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Questions and Answers
In Newtonian physics, free fall is a motion where?
In Newtonian physics, free fall is a motion where?
- The body is in a vacuum environment
- There are no forces acting upon the body
- Friction is the only force acting upon the body
- Gravity is the only force acting upon the body (correct)
In the context of general relativity, a body in free fall experiences?
In the context of general relativity, a body in free fall experiences?
- Only the force of air resistance acting on it
- No force acting on it (correct)
- Equal and opposite forces acting on it
- A net force of zero acting on it
When can an object moving upwards be considered to be in free fall?
When can an object moving upwards be considered to be in free fall?
- When it is propelled by an external force
- When it is in a vacuum environment
- When it is subject to air resistance
- When it is subject to only the force of gravity (correct)
What keeps the Moon in free fall around the Earth?
What keeps the Moon in free fall around the Earth?
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In a roughly uniform gravitational field, what does gravity do to each part of a body?
In a roughly uniform gravitational field, what does gravity do to each part of a body?
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